2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition Owners Manual
2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition Manual
2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition manual content summary:
- 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 1
READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER'S MANUAL YFM45FGX WARNING This ATV should not be ridden by anyone under 16 years of age. LIT-11626-21-46 17S-F8199-10 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 2
EBU17091 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 3
of your ATV, please consult a Yamaha dealer. AN IMPORTANT SAFETY MESSAGE: G READ THIS MANUAL TOGETHER WITH TIPS FOR THE ATV RIDER CAREFULLY AND COMPLETELY BEFORE OPERATING YOUR ATV. MAKE SURE YOU UNDERSTAND ALL INSTRUCTIONS. G PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE ATV. G NEVER - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 4
IN SERIOUS INJURY OR DEATH. Particularly important information is distinguished in this manual by the following notations: The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Failure to follow WARNING instructions could result in severe injury or death to the ATV operator - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 5
time of manufacture. Please check your local riding laws and regulations before operating this ATV. EBU17401 AFFIX DEALER LABEL HERE YFM45FGX OWNER'S MANUAL ©2007 by Yamaha Motor Corporation, U.S.A. 1st edition, June 2007 All rights reserved. Any reprinting or unauthorized use without the written - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 6
EWB00010 WARNING Indicates a potential hazard that could result in serious injury or death. EBU17420 TABLE OF CONTENTS SAFETY INFORMATION ...1-1 LOCATION OF THE WARNING AND SPECIFICATION LABELS ...2-1 DESCRIPTION ...3-1 Left view ...3-1 Right view...3-1 Controls and instruments ...3-2 INSTRUMENT - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 7
30 SLIDING AND SKIDDING ...7-31 WHAT TO DO IF...7-32 WHAT TO DO...7-33 PERIODIC MAINTENANCE AND MINOR REPAIR ...8-1 Owner's manual and tool kit ...8-1 Periodic maintenance chart for the emission control system ...8-3 General maintenance and lubrication chart ...8-5 Removing and installing panels - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 8
56 Removing a wheel ...8-58 Installing a wheel ...8-58 Troubleshooting ...8-60 Troubleshooting charts ...8-61 CLEANING AND STORAGE ...9-1 Cleaning ...9-1 Storage 11-3 Maintenance record ...11-4 YAMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY ...11-5 YAMAHA EXTENDED SERVICE (Y.E.S.) ...11-7 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 9
riding on hills or over obstacles, if you fail to take proper precautions. SEVERE INJURY OR DEATH can result if you do not follow these instructions: G Read this manual and all labels carefully and follow the operating procedures described. G Never operate an ATV without proper training or - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 10
time you use it to make sure it is in safe operating condition. Always follow the inspection and maintenance procedures and schedules described in this manual. Always keep both hands on the handlebars and both feet on the footboards of the ATV during operation. Always go slowly and be extra careful - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 11
. G Never exceed the stated load capacity for an ATV. Cargo should be properly distributed and securely attached. Reduce speed and follow instructions in this manual for carrying cargo or pulling a trailer. Allow greater distance for braking. FOR MORE INFORMATION ABOUT ATV SAFETY, call the Consumer - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 12
EWB00021 WARNING 1 POTENTIAL HAZARD Improper handling of gasoline. WHAT CAN HAPPEN Gasoline can catch fire and you could be burned. HOW TO AVOID THE HAZARD Always turn off the engine when refueling. Do not refuel right after the engine has been running and is still very hot. Do not spill gasoline - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 13
WHAT CAN HAPPEN Exhaust fumes are poisonous and may cause loss of consciousness and death within a short time. HOW TO AVOID THE HAZARD Always operate your ATV in an area with adequate ventilation. 1 1-5 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 14
EBU17660 LOCATION OF THE WARNING AND SPECIFICATION LABELS 2 2-1 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 15
EBU17670 Read and understand all of the labels on your ATV. These labels contain important information for safe and proper operation. Never remove any labels from your ATV. If a label becomes difficult to read or comes off, request a replacement label from your Yamaha dealer. 2 2-2 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 16
2 2-3 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 17
2 2-4 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 18
EBU17680 DESCRIPTION EBU17690 EBU17700 Left view 3 Right view 1. Radiator cap 2. Fuel cock 3. Recoil starter 4. Throttle stop screw 5. Air filter case 6. Battery 7. Fuses 8. Tail/brake light 9. Engine oil filler cap 10.Oil filter cartridge 11.Coolant reservoir 12.V-belt cooling duct check hose - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 19
EBU17712 Controls and instruments NOTE: The ATV you have purchased may differ slightly from the figures shown in this manual. 3 1. 2. 3. 4. 5. 6. 7. 8. 9. Rear brake lever Handlebar switches Starter (choke) Drive select lever Multifunction display Main switch Fuel tank cap Auxiliary DC jack On- - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 20
EBU17722 INSTRUMENT AND CONTROL FUNCTIONS EWB00010 WARNING Indicates a potential hazard that could result in serious injury or death. 4 EBU17760 Main switch The positions of the main switch are as follows: ON All electrical systems are supplied with power. The headlights and taillight come on - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 21
EBU17813 Indicator lights and warning light Furthermore, this indicator light flashes when the engine is being raced for 10 seconds or more. NOTE: If the indicator light flashes under any other circumstances or the speedometer does not show the speed while riding, have a Yamaha dealer check the - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 22
G Start the engine after making sure that the warning light is out. Continuous use while the warning light is on may cause damage to the engine. EBU17970 Park indicator light " " This indicator light comes on when the transmission is in the park position. EBU17980 EBU17961 4 On-Command four- - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 23
EBU18031 Multifunction display G G a clock an hour meter (which shows the total time the key has been turned to "ON") 1. 2. 3. 4. 5. 6. 7. Speedometer "H" button "M" button Clock/Hour meter Odometer/Tripmeter A/Tripmeter B "TRIP/ODO" button Clock/Hour " "/" " button Odometer and tripmeter - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 24
4 To set the clock 1. Set the display to the clock mode. 2. Push the " "/" " button until the clock starts flashing. 3. Set the hours by pushing the "H" button. 4. Set the minutes by pushing the "M" button. 5. Push the " "/" " button, and then release it to start the clock. EBU18050 NOTE: If the - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 25
it. EBU18180 4 Start switch " " Push this switch to crank the engine with the starter. ECB00050 Override switch "OVERRIDE" CAUTION: See the starting instructions on page 6-1 prior to starting the engine. EBU18151 Light switch " / /OFF" Set this switch to " " to turn on the low beams and - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 26
switch to override the differential gear lock speed limiting function. (See page 4-9.) Releasing the switch restores the speed limiting function. While the override switch is pushed, the segments of the speedometer digits will appear as shown in the figure. 4 EWB00110 WARNING POTENTIAL HAZARD - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 27
"4WD" (four-wheel drive): Power is supplied to the rear and front wheels. To change from two-wheel drive to four-wheel drive, stop the ATV and push the switch in to the "4WD" position. Then, the four-wheel-drive indicator " " comes on in the multifunction display. To change from four-wheel drive to - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 28
EBU18243 4 On-Command differential gear lock switch "4WD"/"LOCK" This ATV is equipped with a switch allowing you to lock the differential gear when in four-wheel drive. Select the appropriate switch position according to the terrain and the conditions. G "4WD" (four-wheel drive): Power is supplied - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 29
1. On-Command differential gear lock switch "4WD"/"LOCK" To release the differential gear lock, stop the ATV and push the switch to the "4WD" position. EWB00091 WHAT CAN HAPPEN The ATV handles differently in four-wheel drive than in differential gear lock in some circumstances. Changing from four- - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 30
EWB00101 G WARNING POTENTIAL HAZARD Riding too fast while the ATV is in fourwheel-drive differential gear lock. WHAT CAN HAPPEN All wheels turn at the same speed when the differential gear is locked, so it takes more effort to turn the ATV. The effort needed to turn increases with the riding speed - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 31
before you start the engine. If it does not work smoothly, check for the cause. Correct the problem before riding the ATV. Consult a Yamaha dealer if you can't find or solve the problem yourself. EBU18311 4 Speed limiter 1. Throttle lever Before starting the engine, check the throttle to be sure - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 32
HOW TO AVOID THE HAZARD Do not turn the adjusting screw out more than 12 mm (0.47 in). Always make sure the throttle lever free play is adjusted to 3.0-5.0 mm (0.12-0.20 in). (See page 8-37.) EBU18391 Front brake lever 4 The front brake lever is located on the right handlebar. To apply the front - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 33
EBU18442 Brake pedal and rear brake lever The brake pedal is located on the right side of the ATV and the rear brake lever is located on the left handlebar. To apply the rear brake, push down on the brake pedal or pull the brake lever toward the handlebar grip. 4 1. Rear brake lever EBU18611 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 34
4 1. Drive select lever EBU18680 1. Recoil starter EWB00290 Recoil starter Firmly grasp the handle and pull slightly until engagement can be felt. Then pull forcefully, being careful not to pull the rope all the way out. WARNING POTENTIAL HAZARD Starting the engine without setting the drive - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 35
EBU18720 Fuel tank cap Remove the fuel tank cap by turning it counterclockwise. 4 1. Fuel level 2. Fuel tank filler tube 1. Fuel tank cap EBU18730 Fuel Make sure that there is sufficient fuel in the tank. Fill the fuel tank to the bottom of the filler tube as shown. Recommended fuel: UNLEADED - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 36
content does not exceed 10%. Gasohol containing methanol is not recommended by Yamaha because it can cause damage to the fuel system or ATV performance problems. EWB00270 WHAT CAN HAPPEN Fuel can spill, which can cause a fire and severe injury. Fuel expands when it heats up. If the fuel tank is - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 37
OFF ON 4 1. Arrow mark pointing to "OFF" 1. Arrow mark pointing to "ON" With the fuel cock lever in this position, fuel will not flow. Always turn the fuel cock lever to this position when the engine is not running. With the fuel cock lever in this position, fuel flows to the carburetor. Turn - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 38
RES Move the starter (choke) in direction (b) to turn off the starter (choke). See the "Starting a cold engine" section on page 6-1 for proper operation. 4 1. Arrow mark pointing to "RES" This indicates reserve. With the fuel cock lever in this position, the fuel reserve is made available. Turn - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 39
4 1. Seat 2. Seat lock lever 1. Projection 2. Seat holder EBU18941 To install the seat Insert the projections on the front of the seat into the seat holders and push down on the seat at the rear. NOTE: Make sure that the seat is securely fitted. Storage compartment The storage compartment is - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 40
ECB00130 CAUTION: Do not store metal or sharply edged objects, like tools, in the storage compartment. If they must be stored, wrap them in appropriate cushion material to prevent damaging the storage compartment. 4 NOTE: There is a check hose at the bottom of the storage compartment. If any water - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 41
EBU18970 Rear carrier G G Do not exceed the load limit of 80.0 kg (176 lb) for the rear carrier. Do not exceed the maximum load of 210.0 kg (463 lb) for the ATV. EBU19130 Adjusting the front and rear shock absorber assemblies The spring preload can be adjusted to suit the rider's weight and the - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 42
4 WHAT CAN HAPPEN Uneven adjustment can cause poor handling and loss of stability, which could lead to an accident. HOW TO AVOID THE HAZARD Always adjust the shock absorber assemblies on the left and right side to the same setting. EBU28971 Trailer hitch 1. Special wrench Spring preload setting: - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 43
4 1. Trailer hitch receiver EBU19180 1. Auxiliary DC jack cap Auxiliary DC jack The auxiliary DC jack is located at the front right side of the ATV. The auxiliary DC jack can be used for suitable work lights, radios, etc. The auxiliary DC jack should only be used when the engine is running. 1. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 44
Maximum rated capacity for the auxiliary DC jack: DC 12 V, 120 W (10 A) 4. When the auxiliary DC jack is not being used, cover it with the cap. ECB00120 4 CAUTION: G Do not use accessories requiring more than the above maximum capacity. This may overload the circuit and cause the fuse to blow. G - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 45
the inspection and maintenance procedures and schedules described in the Owner's Manual. NOTE: The maintenance of some items in the table has to dealer. Refer to the periodic maintenance charts on page 8-3 to determine which service should be performed by a Yamaha dealer. ITEM Fuel ROUTINE • Check - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 46
ITEM Engine oil Final gear oil Differential gear oil Coolant ROUTINE • Check oil level in engine, and add recommended oil to specified level if necessary. • Check ATV for oil leakage. Correct if necessary. • Check ATV for oil leakage. Correct if necessary. • Check ATV for oil leakage. Correct if - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 47
ITEM Instruments, lights and switches ROUTINE • Check operation, and correct if necessary. PAGE 5-9 5 5-3 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 48
EBU19530 EBU19590 Fuel Make sure that there is sufficient fuel in the tank. (See page 4-16.) EWB00500 Final gear oil Make sure that the final gear oil is at the specified level. Add oil as necessary. (See page 8-21.) EBU19600 WARNING POTENTIAL HAZARD Improper care when refueling. WHAT CAN HAPPEN - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 49
WHAT CAN HAPPEN You could be burned by hot fluid and steam blown out under pressure. HOW TO AVOID THE HAZARD Wait for the engine to cool before removing the radiator cap. Always use a thick rag over the cap. Allow any remaining pressure to escape before completely removing the cap. EBU28520 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 50
the brakes at the start of every ride. Do not ride the ATV if you find any problem with the brakes. If a problem cannot be corrected by the adjustment procedures provided in this manual, have a Yamaha dealer check for the cause. EBU19761 Tires EWB00551 WARNING POTENTIAL HAZARD Operating this ATV - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 51
G Rear: Manufacturer/model: MAXXIS/M980 Size: AT25 x 10-12 Type: Tubeless The tires should be set to the recommended pressure: Recommended tire pressure: Front: 25.0 kPa (3.6 psi) (0.250 kgf/cm²) Rear: 25.0 kPa (3.6 psi) (0.250 kgf/cm²) • Check and adjust tire pressures when the tires are cold. • - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 52
NOTE: The low-pressure tire gauge is included as standard equipment. Make two measurements of the tire pressure and use the second reading. Dust or dirt in the gauge could cause the first reading to be incorrect. 5 Recommended pressure: Front 25.0 kPa (3.6 psi) (0.250 kgf/cm²) Rear 25.0 kPa (3.6 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 53
5 1. Tire wear limit EBU19840 Chassis fasteners Make sure that all nuts, bolts and screws are properly tightened. EBU19850 Instruments, lights and switches Check that all instruments, lights and switches are working properly. Correct if necessary. 5-9 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 54
familiar with all controls. WHAT CAN HAPPEN Loss of control, which could cause an accident or injury. HOW TO AVOID THE HAZARD Read the Owner's Manual carefully. If there is a control or function you do not understand, ask your Yamaha dealer. CAUTION: See the "Engine break-in" section on page - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 55
3. Shift the drive select lever into the neutral or park position. The corresponding indicator light should come on. If the indicator light does not come on, have a Yamaha dealer check the electrical circuit. NOTE: The engine can be started under the following conditions: G The drive select lever is - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 56
to Low-range 1. Bring the ATV to a complete stop. 2. Apply the brake pedal, and then shift by moving the drive select lever along the shift guide. NOTE: Make sure that the drive select lever is completely shifted into position. 6-3 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 57
Shift from neutral to reverse or from reverse to park and vice versa by moving the drive select lever along the shift guide. 1. 2. 3. 4. 5. 6. Drive select lever L (Low-range) H (High-range) N (Neutral) R (Reverse) P (Park) 6 3. Release the brake pedal, and then open the throttle lever gradually - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 58
G Due to the synchronizing mechanism in the engine, the indicator light may not come on until the ATV starts moving. G For ATVs not equipped with an odometer or hour meter, follow the figures given in hours. 4. Check behind for people or obstacles, and then release the brake pedal. 5. Open the - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 59
ECB00220 CAUTION: If any engine trouble should occur during the engine break-in period, immediately have a Yamaha dealer check the ATV. EBU20690 Parking When parking the ATV, stop the engine, shift - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 60
EBU20910 Accessories and loading EBU20920 6 Accessories Accessories can affect the handling and control of your ATV. Keep the following in mind when considering an accessory or operating an ATV which has accessories. G Choose only accessories designed for your ATV. Your Yamaha dealer has a - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 61
MAXIMUM LOADING LIMIT ATV loading limit (total weight of rider, cargo, accessories, and tongue): 210.0 kg (463 lb) Front carrier: 40.0 kg (88 lb) Rear carrier: 80.0 kg (176 lb) Storage compartment: 2.0 kg (4 lb) Trailer hitch: Pulling load (total weight of trailer and cargo): 4900 N (1102 lbf) (500 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 62
EWB00750 WARNING POTENTIAL HAZARD Overloading this ATV or carrying or towing cargo improperly. WHAT CAN HAPPEN Could cause changes in ATV handling which could lead to an accident. HOW TO AVOID THE HAZARD Never exceed the stated load capacity for this ATV. Cargo should be properly distributed and - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 63
EBU21131 RIDING YOUR ATV 7 7-1 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 64
safely. Before you begin to ride, be sure you have read this Owner's Manual completely and understand the operation of the controls. Pay partic- WARNING POTENTIAL HAZARD Operating this ATV without proper instruction. WHAT CAN HAPPEN The risk of an accident is greatly increased if the operator - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 65
offered by Yamaha. They should then regularly practice the skills learned in the course and the operating techniques described in this Owner's Manual. For more information about the training course, contact an authorized ATV dealer or call 1-800-8872887. Riding your ATV requires skills acquired - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 66
This ATV is designed to carry operator and cargo only - passengers prohibited. EWB00910 WARNING POTENTIAL HAZARD Carrying a passenger on this ATV. WHAT CAN HAPPEN Greatly reduces your ability to balance and control this ATV. Could cause an accident, resulting in harm to you and/or your passenger. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 67
Apparel EWB00920 WARNING POTENTIAL HAZARD Operating this ATV without wearing an approved motorcycle helmet, eye protection and protective clothing. WHAT CAN HAPPEN Operating without an approved motorcycle helmet increases your chances of a severe head injury or death in the event of an accident. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 68
sure the ATV is in safe operating condition. Always follow the inspection and maintenance procedures and schedules described in the Owner's Manual. 7 EWB00930 WARNING POTENTIAL HAZARD Operating this ATV after consuming alcohol or drugs. WHAT CAN HAPPEN Could seriously affect your judgment. Could - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 69
accident. HOW TO AVOID THE HAZARD Always use the size and type tires specified in the Owner's Manual for this ATV on page 5-6. Always maintain proper tire pressure as described in the Owner's Manual on page 5-7. EWB00010 Do not operate at speeds too fast for your skills or the conditions. EWB00960 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 70
Speed limiter For riders less experienced with this model, the throttle lever housing is equipped with a speed limiter. The speed limiter keeps the throttle from fully opening, even when the throttle lever is pushed to the maximum. Turning in the adjusting screw limits the maximum engine power - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 71
ATV. Cargo should be properly distributed and securely attached. Reduce speed when carrying cargo or pulling a trailer. Allow greater distance for braking. Always follow the instructions in your Owner's Manual for carrying cargo or pulling a trailer. 7 7-9 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 72
During operation Always keep your feet on the footboards during operation, otherwise they may contact the rear wheels. WHAT CAN HAPPEN Removing even one hand or foot can reduce your ability to control the ATV or could cause you to lose your balance and fall off of the ATV. If you remove a foot from - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 73
should be genuine Yamaha or equivalent components designed for use on this ATV and should be installed and used according to instructions. If you have questions, consult an authorized ATV dealer. Modifications EWB01000 WARNING POTENTIAL HAZARD Operating this ATV with improper modifications. WHAT - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 74
Exhaust system The exhaust system on the ATV is very hot during and following operation. To prevent burns, avoid touching the exhaust system. Park the ATV in a place where pedestrians or children are not likely to touch it. EWB01010 WARNING POTENTIAL HAZARD Hot exhaust system. WHAT CAN HAPPEN Dry - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 75
HOW TO AVOID THE HAZARD Always avoid paved surfaces, including sidewalks, driveways, parking lots and streets. EWB01030 WARNING POTENTIAL HAZARD Operating this ATV on public streets, roads or highways. WHAT CAN HAPPEN You can collide with another vehicle. HOW TO AVOID THE HAZARD Never operate this - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 76
Know the terrain where you ride. Ride cautiously in unfamiliar areas. Stay alert for holes, rocks, or roots in the terrain, and other hidden hazards which may cause the ATV to upset. EWB01040 WARNING POTENTIAL HAZARD Failure to use extra care when operating this ATV on unfamiliar terrain. WHAT CAN - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 77
HOW TO AVOID THE HAZARD Do not operate on excessively rough, slippery or loose terrain until you have learned and practiced the skills necessary to control the ATV on such terrain. Always be especially cautious on these kinds of terrain. EWB01060 7 WARNING When riding in an area where you might - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 78
is designed for off-road use only, and handling maneuvers are more difficult to perform on pavement. Shift to the park position and follow the instruction on page 6-1 to start the engine. Once it has warmed up you are ready to begin riding your ATV. Remember that the engine and exhaust - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 79
this skill be learned first at low speed. EWB01310 HOW TO AVOID THE HAZARD Always follow proper procedures for turning as described in this Owner's Manual. Practice turning at low speeds before attempting to turn at faster speeds. Do not turn at speeds too fast for your skills or the conditions - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 80
any incline and then practice riding first on gentle slopes. Try more difficult climbs only after you have devel- 1. Lean towards inside of turn. 2. Support your weight on the outer footboard. This procedure should be practiced at slow speed many times in a large off-road area with no obstacles - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 81
oped your skill. In all cases avoid inclines with slippery or loose surfaces, or obstacles that might cause you to lose control. EWB01090 WARNING POTENTIAL HAZARD Operating on excessively steep hills. WHAT CAN HAPPEN The ATV can overturn more easily on extremely steep hills than on level surfaces - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 82
or cause the ATV to overturn. 7 HOW TO AVOID THE HAZARD Always follow proper procedures for climbing hills as described in this Owner's Manual. Always check the terrain carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces. Shift your weight forward - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 83
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until you have mastered the turning technique as described in the Owner's Manual on level ground. Be very careful when turning on any hill. of a hill: Always follow proper procedures as described in the Owner's Manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight to - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 85
position. Dismount on uphill side or to a side if pointed straight uphill. Turn the ATV around and remount, following the procedure described in the Owner's Manual. 7 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 86
control or cause the ATV to overturn. HOW TO AVOID THE HAZARD Always follow proper procedures for going down hills as described in this Owner's Manual. Note: a special technique is required when braking as you go down a hill. Always check the terrain carefully before you start down any hill. Shift - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 87
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hill until you have mastered the turning technique as described in the Owner's Manual on level ground. Be very careful when turning on any hill. Avoid a hill: Always follow proper procedures as described in the Owner's Manual. Avoid hills with excessively slippery or loose surfaces. Shift your weight - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 89
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an accident. HOW TO AVOID THE HAZARD Never operate this ATV in fast flowing water or in water deeper than that specified in your Owner's Manual. Remember that wet brakes may have reduced stopping ability. Test your brakes after leaving water. If necessary, apply them several times to let friction - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 91
1. Air filter case check hose ECB00280 CAUTION: After riding your ATV in water, be sure to drain the trapped water by removing the check hose at the bottom of the air filter case, the V-belt cooling duct check hose, the drive select lever box check hose and the storage compartment check hose. Also, - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 92
1. Drive select lever box check hose 1. V-belt case drain plug 7 RIDING OVER ROUGH TERRAIN Riding over rough terrain should be done with caution. Look out for obstacles which could cause damage to the ATV or could lead to an upset or accident. Be sure to keep your feet firmly mounted on the - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 93
large obstacles, such as large rocks or fallen trees. When you go over obstacles, always follow proper procedures as described in the Owner's Manual. SLIDING AND SKIDDING Care should be used when riding on loose or slippery surfaces since the ATV may slide. If unexpected and uncorrected, sliding - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 94
cautious in order to reduce the chance of skidding or sliding out of control. WHAT TO DO IF...This section is designed to be a reference guide only. Be sure to read each section on riding techniques completely. 7 With practice, over a period of time, skill at controlled sliding can be developed - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 95
WHAT TO DO...G If your ATV doesn't turn when you want it to: Bring the ATV to a stop and practice the turning maneuvers again. Be sure you are putting your weight on the footboard to the outside of the turn. Position your weight over the front wheels for better control. (See page 7-17.) G If your - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 96
maintenance and lubrication chart should be considered as a general guide under normal riding conditions. However, DEPENDING ON THE WEATHER dealer perform the service if you are not familiar with maintenance work. EBU21720 Owner's manual and tool kit Be sure to put this owner's manual in the plastic - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 97
this ATV and should be installed and used according to instructions. If you have questions, consult an authorized Yamaha ATV dealer. 1. Owner's manual 2. Owner's tool kit 3. Low-pressure tire gauge The service information included in this manual and the tools provided in the owner's tool kit are - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 98
EBU21742 Periodic maintenance chart for the emission control system NOTE: G For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals. G For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance intervals. However, keep in - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 99
INITIAL NO. ITEM CHECK OR MAINTENANCE JOB Whichever comes first month km (mi) hours 6 7 * Exhaust system Spark arrester • Check for leakage and replace gasket(s) if necessary. • Check for looseness and tighten all screw clamps and joints if necessary. • Clean. 1 320 (200) 20 3 1300 (800) 80 6 EVERY - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 100
EBU21864 General maintenance and lubrication chart INITIAL NO. ITEM CHECK OR MAINTENANCE JOB Whichever comes first month km (mi) hours 1 Air filter element • Clean and replace if necessary. • Check operation and correct if necessary. • Check fluid level and ATV for fluid leakage, and correct if - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 101
INITIAL NO. ITEM CHECK OR MAINTENANCE JOB Whichever comes first month km (mi) hours 9 10 11 12 13 14 15 16 17 18 19 20 21 Drive shaft universal joint Chassis fasteners Shock absorber assemblies Stabilizer bushes Rear knuckle pivots Steering shaft Steering system Engine mount Axle boots Engine oil - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 102
lever housing and cable Front and rear brake switches Lights and switches Every 2 years 8 26 * 27 28 * * EBU28390 NOTE: G The air filter needs more frequent service if you are riding in unusually wet or dusty areas. 8-7 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 103
G Hydraulic brake service • Regularly check and, if necessary, correct the brake fluid level. • Every two years replace the internal components of the brake master cylinder and calipers, and change the brake fluid. • Replace the brake hoses every four years and if cracked or damaged. 8 8-8 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 104
EWB00010 WARNING Indicates a potential hazard that could result in serious injury or death. EBU23090 Removing and installing panels The panels shown need to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time a panel needs to be removed and - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 105
To install one of the panels 1. Place the panel in its original position. 8 8-10 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 106
Panel B To remove the panel Remove the bolt, and then take the panel off. 8 1. Panel B 2. Bolt To install the panel Place the panel in the original position and install the bolt. ECB00380 2. Install the seat. CAUTION: When installing the panel, be sure not to pinch the cables or wires. 8-11 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 107
Panel C To remove the panel 1. Remove the carrier top bolts. 1. Carrier bolt (under the fenders) 3. Remove the quick fastener screws, and then pull the panel upward to remove it. 1. Carrier bolt (top) 8 2. Remove the carrier bolts under the fenders, and then take the carrier off. 8-12 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 108
Panel E To remove the panel Remove the bolts, and then take the panel off. 1. Quick fastener screw 2. Panel C 8 To install the panel 1. Place the panel in the original position, and then install the quick fastener screws. 2. Place the carrier in the original position, and then install the carrier - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 109
EBU23221 Checking the spark plug The spark plug is an important engine component, which is easy to check. Since heat and deposits will cause any spark plug to slowly erode, the spark plug should be removed and checked in accordance with the periodic maintenance and lubrication chart. In addition, - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 110
tool kit. NOTE: If the spark plug shows a distinctly different color, the engine could be operating improperly. Do not attempt to diagnose such problems yourself. Instead, have a Yamaha dealer check the ATV. 2. Check the spark plug for electrode erosion and excessive carbon or other deposits, and - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 111
NOTE: If a torque wrench is not available when installing a spark plug, a good estimate of the correct torque is 1/4-1/2 turn past finger tight. However, the spark plug should be tightened to the specified torque as soon as possible. 4. Install the spark plug cap. 5. Install the panel. EBU23325 1. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 112
NOTE: If the engine was started before checking the oil level, be sure to warm up the engine sufficiently, and then wait at least ten minutes until the oil settles for an accurate reading. 4. Remove the engine oil filler cap, and then wipe the dipstick off with a clean rag. 1. Dipstick 2. Maximum - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 113
To change the engine oil (with or without oil filter cartridge replacement) 1. Remove panel F. (See page 8-9.) 2. Place the ATV on a level surface. 3. Start the engine, warm it up for several minutes, and then turn it off. 4. Place an oil pan under the engine to collect the used oil. 5. Remove the - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 114
1. Oil filter wrench 1. O-ring 8 NOTE: An oil filter wrench is available at a nearby Yamaha dealer. 8. Apply a thin coat of engine oil to the O-ring of the new oil filter cartridge. NOTE: Make sure that the O-ring is properly seated. 9. Install the new oil filter cartridge with an oil filter - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 115
12. Add the specified amount of the recommended engine oil, and then install and tighten the engine oil filler cap. Recommended oil: See page 10-1. Oil quantity: Without oil filter cartridge replacement: 2.30 L (2.43 US qt) (2.02 Imp.qt) With oil filter cartridge replacement: 2.40 L (2.54 US qt) (2. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 116
G Make sure that no foreign material enters the crankcase. 2. Remove the final gear oil filler bolt, and then check the oil level in the final gear case. NOTE: The oil level should be at the brim of the filler hole. 13. Start the engine, and then let it idle for several minutes while checking it - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 117
Tightening torque: Final gear oil filler bolt: 24 Nm (2.4 m·kgf, 17 ft·lbf) To change the final gear oil 1. Remove the engine guard and the final gear case guard by removing the bolts. 4. Remove the final gear oil filler bolt and the final gear oil drain bolt to drain the oil from the final gear - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 118
ECB00420 CAUTION: Be sure no foreign material enters the final gear case. 7. Install the oil filler bolt, and then tighten it to the specified torque. Tightening torque: Final gear oil filler bolt: 24 Nm (2.4 m·kgf, 17 ft·lbf) 1. Final gear oil filler bolt 2. Correct oil level 3. Final gear oil 8 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 119
EBU23421 Differential gear oil The differential gear case must be checked for oil leakage before each ride. If any leakage is found, have a Yamaha dealer check and repair the ATV. In addition, the differential gear oil level must be checked and the oil changed as follows at the intervals specified - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 120
To change the differential gear oil 1. Place the ATV on a level surface. 2. Place an oil pan under the differential gear case to collect the used oil. 3. Remove the differential gear oil filler bolt and the differential gear oil drain bolt to drain the oil from the differential gear case. 5. Add - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 121
Tightening torque: Differential gear oil filler bolt: 23 Nm (2.3 m·kgf, 17 ft·lbf) 7. Check the differential gear case for oil leakage. If oil is leaking, check for the cause. EBU23470 NOTE: The coolant should be between the minimum and maximum level marks. Coolant The coolant level should be - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 122
radiator fan is automatically switched on or off according to the coolant temperature in the radiator. G If the engine overheats, see page 8-61 for further instructions. 8-27 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 123
4. Remove the front carrier and panel C. (See page 8-9.) 5. Remove the radiator cap. 1. Coolant drain bolt 1. Radiator cap 6. Remove panel D. (See page 8-9.) 7. Remove the coolant reservoir cap. 8. Disconnect the hose on the coolant reservoir side, and then drain the coolant from the coolant - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 124
13. Pour the recommended coolant into the radiator until it is full. Antifreeze/water mixture ratio: 1:1 Recommended antifreeze: High-quality ethylene glycol antifreeze containing corrosion inhibitors for aluminum engines Coolant quantity: Radiator capacity (including all routes): 1.30 L (1.37 US qt - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 125
G If water has been added to the coolant, have a Yamaha dealer check the antifreeze content of the coolant as soon as possible, otherwise the effectiveness of the coolant will be reduced. NOTE: There is a check hose at the bottom of the air filter case. If dust or water collects in this hose, - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 126
1. Air filter case cover holder 2. Air filter case cover 1. Air filter element 3. Pull the air filter element out of the air filter case. 8 4. Pull off the lock plate, and then remove the sponge material from the air filter element frame. 8-31 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 127
HOW TO AVOID THE HAZARD Use parts cleaning solvent to clean the sponge material. 6. Squeeze the excess solvent out of the sponge material and let it dry. ECB00440 CAUTION: Do not twist the sponge material when squeezing it. 1. Air filter element frame 2. Sponge material 3. Air filter element lock - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 128
NOTE: The sponge material should be wet but not dripping. 9. Pull the sponge material over the air filter element frame, and then install the lock plate. 10. Insert the air filter element into the air filter case, and then install the air filter case cover by hooking the holders onto the air filter - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 129
2. Remove the tailpipe by pulling it out of the muffler. 3. Tap the tailpipe lightly, and then use a wire brush to remove any carbon deposits from the spark arrester portion of the tailpipe and inside of the tailpipe housing. Tightening torque: Tailpipe bolt: 10 Nm (1.0 m·kgf, 7.2 ft·lbf) EWB01910 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 130
1. V-belt cooling duct check hose (left front side of ATV) EBU23930 1. V-belt case drain plug EBU23940 V-belt case drain plug 8 After riding in water deep enough to allow it to enter the V-belt case, remove this plug to drain the water from the case. NOTE: If water drains from the V-belt case - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 131
ECB00480 CAUTION: The carburetor has been set and extensively tested at the Yamaha factory. Changing these settings without sufficient technical knowledge may result in poor performance of or damage to the engine. EBU24010 4. Check the engine idling speed and, if necessary, adjust it to - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 132
5. Install the panel. EBU24043 Adjusting the throttle cable free play The throttle cable free play should be checked and, if necessary, adjusted at the intervals specified in the periodic maintenance and lubrication chart. The throttle cable free play should measure 3.0- 5.0 mm (0.12-0.20 in) at - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 133
EBU24070 EBU24171 Adjusting the drive select lever safety system cable The drive select lever safety system cable stretches with use, which can result in improper function. Therefore, the safety system cable should be checked and adjusted at the intervals specified in the periodic maintenance and - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 134
EBU28421 EBU24251 Rear brake friction plates The rear brake is provided with a wear indicator, which allows you to check the brake friction plate wear without having to disassemble the brake. To check the brake friction plate wear, check the position of the wear indicator while applying the brake. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 135
G Use only the recommended quality brake fluid, otherwise the rubber seals may deteriorate, causing leakage and poor braking performance. Recommended brake fluid: DOT 4 tion, have the oil seals of the brake master cylinder and calipers as well as the brake hoses replaced at the intervals listed - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 136
adjusted brakes. WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. HOW TO AVOID THE HAZARD After servicing: G Make sure the brakes operate smoothly and that the free play is correct. G Make sure the brakes do not drag. G Make sure the brakes are - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 137
1. Brake pedal free play 1. Locknut 2. Brake lever free play adjusting bolt 2. Fully loosen the brake lever free play adjusting nut on the brake cable at the final gear case. 8 1. Brake lever free play 1. Loosen the locknut at the brake lever and fully turn in the brake lever free play - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 138
1. Brake lever free play adjusting nut 8 3. Push the brake camshaft lever in direction (a) until it stops [apply approximately 50 N (5.0 kgf, 11.0 lbf) of force], and then turn the brake pedal free play adjusting nut on the brake cable at the final gear case so that gap "A" measures 2.5-3.0 mm (0. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 139
1. Brake lever free play adjusting nut 2. Brake camshaft lever 3. Gap "B" 1. Locknut 2. Brake lever free play adjusting bolt 6. Tighten the locknut at the brake lever. NOTE: When adjusting the rear brake lever free play: G Be sure not to step on the brake pedal. G Make sure the brake pedal does - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 140
be performed by a Yamaha dealer. EBU24230 Axle boots 1. Distance between brake pedal and footboard EWB02020 WARNING 8 POTENTIAL HAZARD Operating with improperly serviced or adjusted brakes. WHAT CAN HAPPEN You could lose braking ability, which could lead to an accident. The axle boots must be - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 141
EBU24751 Brake light switches The operation of the brake light switches must be checked and, if necessary, adjusted at the intervals specified in the periodic maintenance and lubrication chart. The brake light switch for the brake pedal can be adjusted as follows, but the other brake light switches - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 142
EWB02120 WARNING POTENTIAL HAZARD Damaged control cables. WHAT CAN HAPPEN Corrosion can result when the cable sheaths become damaged, and cables can also become frayed or kinked, which could restrict the operation of controls and lead to an accident or injury. HOW TO AVOID THE HAZARD Inspect cables - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 143
EBU28832 EBU24962 Checking and lubricating the brake pedal The operation of the brake pedal should be checked before each ride, and the pedal pivot should be lubricated if necessary. NOTE: To access the brake pedal pivot, remove panel B. (See page 8-9.) Recommended lubricant: Lithium-soap-based - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 144
Lubricate the universal joint using a grease gun. Recommended lubricant: Lithium-soap-based grease EBU25021 Checking the stabilizer bushes The stabilizer bushes must be checked for cracks or damage at the intervals specified in the periodic maintenance and lubrication chart. Have a Yamaha dealer - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 145
EBU25212 Battery This model is equipped with a sealed-type (MF) battery, which does not require any maintenance. There is no need to check the electrolyte or to add distilled water. Check and, if necessary, tighten the battery lead connections. ECB00620 CAUTION: Never attempt to remove the battery - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 146
2. If the battery will be stored for more than two months, check it at least once a month and fully charge it if necessary. To install the battery NOTE: Be sure the battery is fully charged. 1. Place the battery in its compartment. 2. Make sure to properly connect the battery leads to the battery - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 147
EBU25313 Replacing a fuse 1. Main fuse 2. Spare main fuse 1. Main fuse 2. Fuse box 8 8-52 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 148
ECB00640 CAUTION: To prevent accidental short-circuiting, turn off the main switch when checking or replacing a fuse. 2. Remove the blown fuse, and then install a new fuse of the specified amperage. Specified fuses: Main fuse: 30.0 A Headlight fuse: 15.0 A Ignition fuse: 10.0 A Four-wheel-drive - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 149
EWB02151 WARNING POTENTIAL HAZARD Using an improper fuse. WHAT CAN HAPPEN An improper fuse can cause damage to the electrical system, which could lead to a fire. HOW TO AVOID THE HAZARD Always use a fuse of the specified rating. Never use a material in place of the proper fuse. 1. Cover at the rear - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 150
3. Remove the headlight bulb holder by pushing it in and turning it counterclockwise. 5. Insert a new headlight bulb into the bulb holder by pushing it in. 1. Headlight bulb holder 1. Do not touch the glass part of the bulb. ECB00650 8 4. Remove the defective bulb by pulling it out. EWB02180 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 151
7. Install the bulb holder cover and the cover at the rear of the headlight. ECB00670 CAUTION: Make sure the headlight bulb holder cover is securely fitted over the bulb holder and seated properly. 8. Adjust the headlight beam if necessary. EBU25550 Adjusting a headlight beam ECB00690 1. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 152
1. Tail/brake light assembly 2. Nut 1. Tail/brake light assembly 2. Tail/brake light bulb holder 2. Remove the bulb holder (together with the bulb) by turning it counterclockwise. 8 3. Remove the defective bulb by pushing it in and turning it counterclockwise. 8-57 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 153
1. Tail/brake light bulb holder 2. Tail/brake light bulb 1. Wheel nut 4. Insert a new bulb into the bulb holder, push it in, and then turn it clockwise until it stops. 5. Install the bulb holder (together with the bulb) by turning it clockwise. 6. Install the tail/brake light assembly by - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 154
G Tapered nuts are used for both the front and rear wheels. Install the nuts with their tapered side towards the wheel. 1. Tapered nut 8 1. Arrow mark 2. Lower the ATV to the ground. 3. Tighten the wheel nuts to the specified torques. Tightening torques: Front wheel nut: 55 Nm (5.5 m·kgf, 40 ft - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 155
trouble may occur during operation. Any problem in the fuel, compression, or ignition systems, for example, can cause poor starting and loss of power. The following troubleshooting parts, but they are often inferior, have a shorter service life and can lead to expensive repair bills. EWB02260 HOW - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 156
EBU25771 Troubleshooting charts Starting problems or poor engine performance 1. Fuel There is enough fuel. Check the fuel level in the fuel tank. There is no fuel. Supply fuel. Check the - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 157
Engine overheating EWB02270 WARNING POTENTIAL HAZARD Removing the radiator cap when the engine and radiator are still hot. WHAT CAN HAPPEN You could be burned by hot fluid and steam blown out under pressure. HOW TO AVOID THE HAZARD Wait for the engine to cool before removing the radiator cap. - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 158
EBU25860 CLEANING AND STORAGE EBU25870 Cleaning Frequent, thorough cleaning of your ATV will not only enhance its appearance but will improve its general performance and extend the useful life of many components. 1. Before cleaning the ATV: a. Block off the end of the exhaust pipe to prevent water - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 159
and, if necessary, protect it against dust with a porous cover. ECB00720 Long-term Before storing your ATV for several months: 1. Follow all the instructions in the "Cleaning" section of this chapter. 2. Turn the fuel cock lever to "OFF". 3. Drain the carburetor float chamber by loosening the drain - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 160
6. 7. 9 8. 9. c. Install the spark plug cap onto the spark plug, and then place the spark plug on the cylinder head so that the electrodes are grounded. (This will limit sparking during the next step.) d. Turn the engine over several times with the starter. (This will coat the cylinder wall with - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 161
Displacement: 421.0 cm³ Bore × stroke: 84.5 × 75.0 mm (3.33 × 2.95 in) -20˚ -10˚ 0˚ 10˚ 20˚ 30˚ 40˚ 50˚C 10 Recommended engine oil grade: API service SG type or higher, JASO standard MA Engine oil quantity: Without oil filter cartridge replacement: 2.30 L (2.43 US qt) (2.02 Imp.qt) 10-1 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 162
With oil filter cartridge replacement: 2.40 L (2.54 US qt) (2.11 Imp.qt) Carburetor: Manufacturer: MIKUNI Type x quantity: BSR33 x 1 Final gear oil: Type: Yamaha Friction Modified Shaft Drive Gear Oil (Part No.: ACC-SHAFT-LU-00) Quantity: 0.50 L (0.53 US qt) (0.44 Imp.qt) Spark plug (s): - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 163
Chassis: Frame type: Steel tube frame Caster angle: 2.5 ° Trail: 8.5 mm (0.33 in) Front tire: Type: Tubeless Size: AT25 x 8-12 Manufacturer/model: MAXXIS/M979 Minimum: Front: 22.0 kPa (3.2 psi) (0.220 kgf/cm²) Rear: 22.0 kPa (3.2 psi) (0.220 kgf/cm²) Maximum: Front: 28.0 kPa (4.1 psi) (0.280 kgf/ - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 164
Operation: Left hand and right foot operation Bulb voltage, wattage x quantity: Headlight: 12 V, 30.0/30.0 W × 2 Tail/brake light: 12 V, 5.0/21.0 W × 1 Neutral indicator light: LED Reverse indicator light: LED Coolant temperature warning light: LED Park indicator light: LED On-Command four-wheel- - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 165
Auxiliary DC jack fuse: 10.0 A Backup fuse: 10.0 A Four-wheel-drive motor fuse: 10.0 A 10 10-5 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 166
EBU25981 CONSUMER INFORMATION EBU26011 EBU26020 Identification numbers Record the key identification number, vehicle identification number and model label information in the spaces provided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the ATV is - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 167
1. Vehicle identification number (front left side) 1. Model label NOTE: The vehicle identification number is used to identify your ATV. EBU26050 Model label The model label is affixed at the location in the illustration. Record the information on this label in the space provided. This information - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 168
EBU26060 Noise regulation TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inoperative by any person other than for purposes of maintenance, repair, or replacement of any device or element of design - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 169
) 15000 (9600) 17500 (11200) 20000 (12800) 22500 (14400) 25000 (16000) hours 20 80 160 320 480 640 800 960 1120 1280 1440 1600 DATE OF SERVICE MILEAGE SERVICING DEALER NAME AND ADDRESS REMARKS 11 11-4 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 170
to: 1. Operate and maintain the ATV as specified in the appropriate owner's manual; 2. Give notice to an authorized Yamaha ATV dealer of any and all An inspection and registration fee will be charged for this service. EMISSION CONTROL SYSTEM WARRANTY Yamaha Motor Corporation, USA also warrants - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 171
specified in the Owner's and Service Manual. We do recommend, however, service, you must take it to any authorized Yamaha ATV dealer within the continental United States. Be sure to bring your warranty registration card or other valid proof of the original date of purchase. If a question or problem - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 172
no extra cost. TRIP gives you up to $150 reimbursement per occurrence for any reasonable expenses you incur because your Yamaha needs covered service: replacement vehicle rental, emergency towing, phone calls, even food and lodging when you are away from home. This superb coverage goes into effect - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 173
isn ' t convenient, contact Yamaha with your Primar y ID number (your frame number). We ' ll be happy to help you get the Y.E.S. coverage you need. Yamaha Service Marketing P.O. Box 6555 Cypress, CA 90630 11 WARNING Indicates a potential hazard that could result in serious injury or death. 11-8 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 174
EBU26132 11 11-9 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 175
INDEX A Accessories and loading ...6-7 Accessories, auxiliary jack ...4-24 Air filter element, cleaning ...8-30 Axle boots ...8-45 D Differential gear lock indicator light ...4-3 Differential gear oil ...5-4, 8-24 Drive select lever ...4-14 Drive select lever and driving in reverse ...6-3 Drive - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 176
Owner's manual and tool kit ...8-1 T Tail/brake light bulb, replacing ...8-56 Throttle cable free play, adjusting ...8-37 Throttle lever ...4-11, 5-6 Tire pressure, measuring ...5-7 Tires ...5-6 Tire wear limit ...5-8 Trailer hitch ...4-23 Troubleshooting ...8-60 Troubleshooting charts ...8-61 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 177
V-belt case drain plug ...8-35 V-belt cooling duct check hose ...8-34 Vehicle identification number ...11-1 W Warranty, extended ...11-7 Warranty, limited ...11-5 Wheel hub bearings, checking ...8-48 Wheel, installing ...8-58 Wheel, removing ...8-58 - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 178
- 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 179
- 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 180
and control. with a passenger-passengers affect balance and steering and increase risk of losing control. LOCATE AND READ OWNER'S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS. (For replacement manual, call 1-800-532-1558) NEVER operate: YAMAHA MOTOR CO., LTD. PRINTED IN USA 2007.07-2.6×1 CR (E) - 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 181
- 2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition | Owners Manual - Page 182
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READ THIS MANUAL CAREFULLY!
It contains important safety information.
This ATV should not be ridden by anyone under 16 years of age.
WARNING
OWNER’S MANUAL
17S-F8199-10
LIT-11626-21-46
YFM45FGX