2010 Yamaha Motorsports Grizzly 450 4x4 Owners Manual

2010 Yamaha Motorsports Grizzly 450 4x4 Manual

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  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 1
    READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER'S MANUAL YFM45FGZ YFM45FGHZ WARNING This ATV should not be ridden by anyone under 16 years of age. LIT-11626-23-27 37S-F8199-11
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 2
    EBU17092 Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | 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 notice labels on the ATV. G Never
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 4
    CAN RESULT IN SERIOUS INJURY OR DEATH. Particularly important information is distinguished in this manual by the following notations: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 5
    effect at the time of manufacture. Please check your local riding laws and regulations before operating this ATV. EBU17402 YFM45FGZ/YFM45FGHZ OWNER'S MANUAL ©2009 by Yamaha Motor Corporation, U.S.A. 1st edition, April 2009 All rights reserved. Any reprinting or unauthorized use without the written
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 6
    EWB00011 WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. EBU17420 TABLE OF CONTENTS LOCATION OF THE WARNING AND SPECIFICATION LABELS ...1-1 SAFETY INFORMATION ...2-1 DESCRIPTION ...3-1 Left view ...3-1 Right view...3-1 Controls and
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 7
    TERRAIN ...7-21 SLIDING AND SKIDDING...7-21 WHAT TO DO IF...7-23 WHAT TO DO...7-23 PERIODIC MAINTENANCE AND ADJUSTMENT...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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 8
    57 Removing a wheel ...8-59 Installing a wheel ...8-59 Troubleshooting ...8-61 Troubleshooting charts ...8-62 CLEANING AND STORAGE ...9-1 Cleaning ...9-1 Storage 11-4 Maintenance record ...11-5 YAMAHA MOTOR CORPORATION, U.S.A. ATV LIMITED WARRANTY ...11-6 YAMAHA EXTENDED SERVICE (Y.E.S.) ...11-8
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 9
    EBU17660 LOCATION OF THE WARNING AND SPECIFICATION LABELS 1 6 7 8 9 10 11 1-1
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 10
    EBU17670 1 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. 1 2 88 lbs (40
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 11
    1 176 lbs (80 kg) 5ND-F4897-30 5880 N 1322 (600 kgf) 37S-F151K-00 1-3
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 12
    7 1 8 Certification of Compliance This ATV complies with applicable provisions of ANSI/SVIA 1-2007 and is subject to an approved ATV action plan submitted by YAMAHA and on file with the U.S. Consumer Product safety Commission. YAMAHA MOTOR CORPORATION U.S.A. UNDER 6555 Katella Avenue, Cypress,
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 13
    10 WARNING Fuel vapors can be a fire or explosion hazard. To avoid injury or death, never store fuel or flammable liquids in this storage compartment. Storage should not exceed 0.5 kg (1 lb) 37S-F151F-00 1 11 1-5
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 14
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 15
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 16
    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. EWB00071 WARNING Avoid Carbon Monoxide Poisoning All engine
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 17
    and you can quickly be overcome and unable to save yourself. Also, deadly levels of carbon monoxide can linger for hours or days in enclosed or poorly ventilated areas. If you experience any symptoms of carbon monoxide poisoning, leave the area immediately, get fresh air, and SEEK MEDICAL TREATMENT.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 19
    Controls and instruments 2 3 4 5 6 7 8 12 TIP 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 Multi-function display Main switch Auxiliary DC jack Fuel
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 20
    EBU17725 INSTRUMENT AND CONTROL FUNCTIONS EWB00011 WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. 4 EBU17760 Main switch The positions of the main switch are as follows: ON All electrical systems are supplied with power. The headlights and
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 21
    EBU17814 Indicator lights and warning light Furthermore, this indicator light flashes when the engine is being raced for 10 seconds or more. TIP 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | 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. the indicator light continue to flash, the differential is not locked. In this case, start moving to allow time for the differential to lock. EBU17970
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 23
    EBU18036 Multi-function display G an hour meter (which shows the total time the engine has been running) 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 modes Pushing the "
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | 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 TIP If the ATV
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 25
    battery charging information. EBU18190 Override switch "OVERRIDE" 4 Start switch " " Push this switch to crank the engine with the starter. See the starting instructions on page 6-1 prior to starting the engine. EBU18152 Light switch " / /OFF" Set this switch to " " to turn on the low beams and
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 26
    While the override switch is pushed, the segments of the speedometer digits will appear as shown in the figure. All wheels turn at the same speed when the differential is locked, so it takes more effort to turn the ATV. The effort needed to turn increases with the riding speed. You may lose control
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 27
    This ATV is equipped with a switch to change from two-wheel drive to four-wheel drive and vice versa. Select the appropriate drive according to the terrain and the conditions. G "2WD" (two-wheel drive): Power is supplied to the rear wheels. G "4WD" (four-wheel drive): Power is supplied to the rear
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 28
    EBU18255 On-Command differential gear lock switch "4WD"/"LOCK" EWB00131 control and have an accident if you cannot make a sharp enough turn for the speed you are traveling. This ATV is equipped with a switch allowing you to lock the differential gear when in four-wheel drive. Select the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 29
    4 1. On-Command four-wheel-drive switch "2WD"/"4WD" 2. On-Command differential gear lock switch "4WD"/"LOCK" 1. Differential gear lock lever 2. On-Command four-wheel-drive switch "2WD"/"4WD" To lock the differential gear in four-wheel drive, make sure the On-Command four-wheel-drive switch is
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 30
    G G 4 1. On-Command differential gear lock switch "4WD"/"LOCK" Riding before the differential gear lock is properly engaged (e.g., when the indicator and indicator light are flashing) will cause the vehicle speed to be limited until engagement is complete. When the ATV is in four-wheel-drive
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 31
    1. Throttle lever crease the maximum engine power available and the maximum speed of the ATV, turn the adjusting screw in direction (b). Do not turn the adjusting screw out more than 12 mm (0.47 in) or the throttle cable could be damaged. Always make sure the throttle lever free play is adjusted to
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 32
    3. Tighten the locknut. EBU18391 Front brake lever The front brake lever is located on the right handlebar. To apply the front brake, pull the brake lever toward the handlebar grip. 4 1. Brake pedal 1. Front brake lever EBU18442 Brake pedal and rear brake lever The brake pedal is located on the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 33
    EBU18611 Drive select lever The drive select lever is used to shift your ATV into the low-range, high-range, neutral, reverse and park positions. See the "Operating the drive select lever and driving in reverse" section on page 6-3 for the drive select lever operation. 4 1. Recoil starter EWB00330
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 34
    WARNING Gasoline and gasoline vapors are extremely flammable. To avoid fires and explosions and to reduce the risk of injury when refueling, follow these instructions. 1. Before refueling, turn off the engine and be sure that no one is sitting on the vehicle. Never refuel while smoking, or while in
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 35
    exceed 10% (E10). Gasohol containing methanol is not recommended by Yamaha because it can cause damage to the fuel system or vehicle performance problems. 4 WARNING Gasoline is poisonous and can cause injury or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 36
    EBU18820 Fuel cock The fuel cock supplies fuel from the tank to the carburetor while also filtering it. The fuel cock lever positions are explained as follows and shown in the illustrations. OFF 4 ON 1. Arrow mark pointing to "ON" With the fuel cock lever in this position, fuel flows to the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 37
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 38
    4 1. Seat 2. Seat lock lever 1. Projection 2. Seat holder EBU29252 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. Make sure that the seat is securely fitted. Storage compartments This ATV is equipped with two
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 39
    The front storage compartment is located at the front right side of the ATV. To access the storage compartment, remove the storage compartment cover by turning it counterclockwise. 4 1. Front storage compartment The rear storage compartment is located under the seat. (See page 4-18.) 1. Front
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 40
    4 When storing any documents in the storage compartments, be sure to wrap them in a plastic bag so that they will not get wet. When washing the ATV, be careful not to let any water enter the storage compartments. G Do not exceed the load limit of 0.5 kg (1 lb) for the front storage compartment or
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 41
    EBU18962 Front carrier G G Do not exceed the load limit of 40.0 kg (88 lb) for the front carrier. Do not exceed the maximum load of 210.0 kg (463 lb) for the ATV. Adjust the spring preload as follows. Turn the spring preload adjusting ring in direction (a) to increase the spring preload and
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 42
    Trailer towing equipment can be obtained at a Yamaha dealer. (See page 6-7 for precaution information.) 4 1. Special wrench Spring preload setting: Minimum (soft): 1 Standard: 2 Maximum (hard): 5 EBU28971 1. Trailer hitch receiver EBU19181 Auxiliary DC jack The auxiliary DC jack is located at
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 43
    G 1 G 2 If accessories are used without the engine running or with the headlights turned on, the battery will lose its charge and engine starting may become difficult. Do not use an automotive cigarette lighter or other accessories with a plug that gets hot because the jack can be damaged. 4
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 44
    inspection and maintenance procedures and schedules described in the Owner's Manual. EWB00481 5 WARNING Failure to inspect or maintain the vehicle the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in this manual, have the vehicle inspected by a
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 45
    ITEM ROUTINE • Check operation. If soft or spongy, have Yamaha dealer bleed hydraulic system. • Check brake pads for wear, and replace if necessary. • Check brake fluid level in reservoir, and add recommended brake fluid to specified level if necessary. • Check hydraulic system for leakage. Correct
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 46
    EBU19541 Fuel Make sure that there is sufficient fuel in the tank. (See page 4-15.) EBU19560 TIP The coolant level must be checked on a cold engine since the level varies with engine temperature. EBU28531 Engine oil Make sure that the engine oil is at the specified level. Add oil as necessary. (
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 47
    Brake fluid leakage (front brake) Check to see if any brake fluid is leaking out of the hose, joint or brake fluid reservoir of the front brake. Apply the brake firmly for one minute. If the lever moves slowly inward, there may be a leak in the brake system. If there is any leakage, the brake system
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 48
    5 Recommended tire pressure: Front 25.0 kPa (0.250 kgf/cm², 3.6 psi) Rear 25.0 kPa (0.250 kgf/cm², 3.6 psi) Minimum tire pressure: Front 22.0 kPa (0.220 kgf/cm², 3.2 psi) Rear 22.0 kPa (0.220 kgf/cm², 3.2 psi) Maximum tire seating pressure: Front 250 kPa (2.5 kgf/cm², 36 psi) Rear 250 kPa (2.5 kgf/
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 49
    1. Tire wear limit Tire information This ATV is equipped with tubeless tires with valves. EWB02551 Front: Manufacturer/model: MAXXIS/M979 Size: AT25 x 8-12 Type: Tubeless Rear: Manufacturer/model: MAXXIS/M980 Size: AT25 x 10-12 Type: Tubeless Aftermarket tires and rims The tires and rims that came
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 50
    EBU19850 Instruments, lights and switches Check that all instruments, lights and switches are working properly. Correct if necessary. 5 5-7
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 51
    . 4. Use the starter (choke) in reference to the figure: Position (1): Cold engine start with ambient temperature below 5 °C (40 °F). 6-1 6 WARNING Read the Owner's Manual carefully to become familiar with all controls in order to help prevent any loss of control, which could cause an accident or
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 52
    Position (2): Cold engine start with ambient temperature between 0 °C (30 °F) and 30 °C (90 °F). Position (3): Cold engine start with ambient temperature above 25 °C (80 °F). 6. Completely close the throttle lever and start the engine by pushing the start switch. NOTICE: For maximum engine life,
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 53
    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. 3. Release the brake pedal, and then open the throttle lever gradually. 6-3
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 54
    the brake pedal. 3. Shift from neutral to reverse or from reverse to park and vice versa by moving the drive select lever along the shift guide. TIP When in reverse, the reverse indicator light should come on. If the indicator light does not come on, have a Yamaha dealer check the electrical
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 55
    this period, prolonged full-throttle operation or any condition that might result in engine overheating must be avoided. 6 NOTICE 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 56
    EBU20820 Parking on a slope EWB00860 6 WARNING Avoid parking on hills or other inclines. Parking on a hill or other incline could cause the ATV to roll out of control, increasing the chance of an accident. If you must park on an incline, place the ATV transversely across the incline, stop the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 57
    Yamaha or modifications not specifically recommended by Yamaha, even if sold and installed by a Yamaha dealer. Aftermarket parts, accessories, and modifications While you may find aftermarket products similar in design and quality to genuine Yamaha Accessories, recognize that some aftermarket
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 58
    G Never exceed the weight limits shown. An overloaded ATV can be unstable. 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) Front storage compartment: 0.5 kg (1 lb) Rear
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 59
    G G Avoid making sharp turns unless at very slow speeds. Avoid hills and rough terrain. Choose terrain carefully. Added weight affects the stability and handling of the ATV. EWB00011 WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. 6 6-9
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 60
    EBU21132 RIDING YOUR ATV 7 7-1
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 61
    Before you begin to ride, be sure you have read this Owner's Manual completely and understand the operation of the controls. Pay partic- G G WARNING not operate this ATV or allow anyone else to operate it without proper instruction. The risk of an accident is greatly increased if the operator does
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 62
    niques described in this Owner's Manual. For more information about the training course, contact an authorized ATV dealer or call 1-800-887-2887. Riding your ATV requires skills acquired through practice
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 63
    Apparel Always wear the following to reduce risk of injury in an accident: G Approved motorcycle helmet that fits properly G Eye protection (goggles, helmet face shield, or protective eyewear) G Over-the-ankle boots, gloves, long-sleeved shirt or jacket, and long pants An approved helmet and other
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 64
    . Perform the pre-operation checks listed on page 5-1. Always follow the inspection and maintenance procedures and schedules described in the Owner's Manual. WARNING! Failure to inspect the ATV before operating it and to maintain it properly increases the possibility of an accident or equipment
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 65
    of control, an overturn, or other accident. To reduce the risk of an accident: 7-6 Take extra precautions when driving with a load or trailer. Follow these instructions and always use common sense and good judgment when carrying cargo or towing a trailer.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 66
    7 MAXIMUM LOADING LIMIT ATV loading limit (total weight of cargo, rider, accessories, and tongue): 210.0 kg (463 lb) Front carrier: 40.0 kg (88 lb) Rear carrier: 80.0 kg (176 lb) Front storage compartment: 0.5 kg (1 lb) Rear storage compartment: 2.0 kg (4 lb) Trailer hitch: Pulling load (total
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 67
    this ATV 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. WARNING! Operating this ATV with improper modifications may cause changes in handling which in
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 68
    To prevent burns, avoid touching the exhaust system. Park the ATV in a place where pedestrians or children are not likely to touch it. BE CAREFUL WHERE YOU RIDE This ATV is designed for off-road use only. WARNING! Paved surfaces may seriously affect handling and control of the ATV, and may cause
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 69
    WARNING! Never operate this ATV on any public street, road or highway, even a dirt or gravel one. You could collide with another vehicle. [EWB01031] 7 Do not operate on rough, slippery, or loose terrain until you have learned and practiced the skills necessary to control the ATV on such terrain.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 70
    7 When riding in an area where you might not easily be seen, such as desert terrain, mount a caution flag on the ATV. DO NOT use the flag pole bracket as a trailer hitch. WARNING! You could collide with another vehicle if operating in off-road areas where you cannot easily be seen. Mount a caution
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 71
    before trying more difficult terrain. Shift to the park position and follow the instruction on page 6-1 to start the engine. Once it has warmed up you Always follow proper procedures for turning as described in this Owner's Manual. Practice turning at low speeds before attempting to turn at faster
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 72
    familiar with the operation of your ATV. CLIMBING UPHILL EWB01671 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 loss of control. Use proper riding techniques described in this Owner's Manual.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 73
    of the hill. Never attempt to turn the ATV around on any 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 crossing the side of a steep hill if possible. When crossing the side of
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 74
    7 Do not attempt to climb hills until you have mastered basic maneuvers on flat ground. Always check the terrain carefully before attempting any hill. In all cases avoid inclines with slippery or loose surfaces, or obstacles that might cause you to lose control. To climb a hill, you need traction,
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 75
    WARNING Going down a hill improperly could cause overturns or loss of control. Always follow proper procedures for going down hills as described in this Owner's Manual. 7-16 When riding your ATV downhill, shift your weight as far to the rear and uphill side of the ATV as possible. Move back on
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 76
    hills or turning on hills could cause loss of control or cause the ATV to overturn. G Always follow proper procedures as described in the Owner's Manual. G Avoid hills with excessively slippery or loose surfaces. G Avoid crossing the side of a steep hill. 7-17
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 77
    of the ATV. Never attempt to turn the ATV around on any 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. Traversing a sloping surface on your ATV requires you to properly position your weight to
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 78
    The ATV can be used to cross slow moving, shallow water of up to a maximum of 35 cm (14 in) in depth. Before entering the water, choose your path carefully. Enter where there is no sharp drop off, and avoid rocks or other obstacles which may be slippery or upset the ATV. Drive slowly and carefully.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 79
    Wash the ATV in fresh water if it has been operated in salt water or muddy conditions. 1. Drive select lever box check hose 1. Air filter case check hose 7 1. Storage compartment check hose 1. V-belt cooling duct check hose (left front side of ATV) 7-20
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    over 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. 1. V-belt case drain plug 7 Riding over rough terrain should be done with caution. Look out for obstacles which could cause damage to the ATV
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 81
    G G Learn to safely control skidding or sliding by practicing at low speeds and on level, smooth terrain. On extremely slippery surfaces, such as ice, go slowly and be very cautious in order to reduce the chance of skidding or sliding out of control. If the rear wheels of your ATV start to slide
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 82
    WHAT TO DO IF...This section is designed to be a reference guide only. Be sure to read each section on riding techniques completely. WHAT TO DO...If your ATV doesn't turn when you want it to: Bring
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 83
    service, have a Yamaha dealer perform the service. EWB02561 The intervals given in the periodic maintenance and lubrication chart should be considered as a general guide TO BE SHORTENED. 8 EBU21731 Owner's manual and tool kit Be sure to put this owner's manual in the plastic bag and always carry
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 84
    Owner's tool kit 3. Low-pressure tire gauge 8 The service information included in this manual and the tools provided in the owner's tool kit are intended to assist you in the performance of preventive maintenance and minor repairs. However, additional
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 85
    EBU21743 Periodic maintenance chart for the emission control system TIP 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 mind
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 86
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 87
    EBU21865 General maintenance and lubrication chart TIP 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 mind that if the ATV
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 88
    INITIAL NO. ITEM CHECK OR MAINTENANCE JOB Whichever comes first month km (mi) hours 4 5 * * Brake hoses Wheels • Check for cracks or other damage, and replace if necessary. • Replace. • Check runout and for damage, and replace if necessary. • Check tread depth and for damage, and replace if
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 89
    INITIAL NO. ITEM CHECK OR MAINTENANCE JOB Whichever comes first month km (mi) hours 16 17 18 19 20 21 * * * Engine mount Axle boots Engine oil Engine oil filter cartridge Engine oil strainer Differential gear oil • Check for cracks or other damage, and replace if necessary. • Check for cracks or
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 90
    if you are riding in unusually wet, dusty, sandy or muddy areas, or at full-throttle. 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 91
    EWB00011 WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 92
    To install one of the panels 1. Place the panel in its original position. 8 8-10
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 93
    2. Install the seat. Panel B To remove the panel Remove the bolt, and then take the panel off. 1. Panel B 2. Bolt To install the panel Place the panel in the original position and install the bolt. NOTICE: When installing the panel, be sure not to pinch the cables or wires. [ECB00381] Panel C To
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 94
    1 1 1 1. Carrier bolt (top) 1. Carrier bolt (under the fenders) 2. Remove the carrier bolts under the fenders, and then take the carrier off. 8 3. Remove the quick fastener screws, and then pull the panel upward to remove it. 8-12
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 95
    1 Tightening torques: Carrier bolt (top): 34 Nm (3.4 m·kgf, 24 ft·lbf) Carrier bolt (under fenders): 7 Nm (0.7 m·kgf, 5.1 ft·lbf) Panel E 2 To remove the panel Remove the bolts, and then take the panel off. 1. Quick fastener screw 2. Panel C To install the panel 1. Place the panel in the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 96
    To install the panel Place the panel in the original position and install the bolts. Panel F To remove the panel Pull outward on the areas shown. EBU23222 Checking the spark plug 8 The spark plug is an important engine component, which is easy to check. Since heat and deposits will cause any spark
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 97
    ATV is ridden normally). TIP 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. 8 8-15
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 98
    2. Check the spark plug for electrode erosion and excessive carbon or other deposits, and replace it if necessary. Specified spark plug: NGK/DR8EA 3. Measure the spark plug gap with a wire thickness gauge and, if necessary, adjust the gap to specification. To install the spark plug 1. Clean the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 99
    EBU23328 Engine oil and oil filter cartridge The engine oil level should be checked before each ride. In addition, the oil must be changed and the oil filter cartridge replaced at the intervals specified in the periodic maintenance and lubrication chart. To check the engine oil level 1. Place the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 100
    To change the engine oil (with or without oil filter cartridge replacement) 1. Place the ATV on a level surface. 2. Remove panel F. (See page 8-9.) 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 101
    TIP Skip steps 6-10 if the oil filter cartridge is not being replaced. 6. Remove panels D and E. (See page 8-9.) 7. Remove the oil filter cartridge with an oil filter wrench. 1. Oil filter wrench TIP An oil filter wrench is available at a nearby Yamaha dealer. 8. Apply a thin coat of engine oil to
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 102
    1. O-ring 1. Torque wrench TIP Make sure that the O-ring is properly seated. 8 9. Install the new oil filter cartridge with an oil filter wrench, and then tighten it to the specified torque with a torque wrench. Tightening torque: Oil filter cartridge: 17 Nm (1.7 m·kgf, 12 ft·lbf) 10. Install
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 103
    12. Refill with 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 104
    2. Remove the final gear oil filler bolt, and then check the oil level in the final gear case. The oil level should be at the brim of the filler hole. To change the final gear oil 1. Place the ATV on a level surface. 2. Remove the engine guard and the final gear case guard by removing the bolts. 8
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 105
    1. Final gear oil drain bolt 5. Install the drain bolt, and then tighten it to the specified torque. Tightening torque: Final gear oil drain bolt: 24 Nm (2.4 m·kgf, 17 ft·lbf) 6. Refill with the recommended final gear oil to the brim of the filler hole as shown. NOTICE: Be sure no foreign material
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 106
    Tightening torque: Final gear oil filler bolt: 24 Nm (2.4 m·kgf, 17 ft·lbf) 8. Check the final gear case for oil leakage. If oil is leaking, check for the cause. 9. Install the engine guard and the final gear case guard by installing the bolts, and then tightening them to the specified torques.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 107
    3. If the oil is below the brim of the filler hole, add sufficient oil of the recommended type to raise it to the correct level. 4. Install the oil filler bolt, and then tighten it to the specified torque. Tightening torque: Differential gear oil filler bolt: 23 Nm (2.3 m·kgf, 17 ft·lbf) To change
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 108
    EBU23470 Coolant The coolant level should be checked before each ride. In addition, the coolant must be changed at the intervals specified in the periodic maintenance and lubrication chart. EBU27124 To check the coolant level 1. Place the ATV on a level surface. 1. Differential gear oil 2.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 109
    radiator fan is automatically switched on or off according to the coolant temperature in the radiator. G If the engine overheats, see page 8-62 for further instructions. 8
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 110
    EBU23603 To change the coolant EWB01890 WARNING Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by hot fluid and steam blown out under pressure. Always place a thick rag over the cap when opening. Allow any remaining pressure to escape before
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 111
    4. Remove the front carrier and panel C. (See page 8-9.) 5. Remove the radiator cap. 1. Coolant reservoir hose 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 112
    antifreeze with distilled water only. However, if distilled water is not available, soft water may be used for refilling. Do not use hard water or salt water since they are harmful to the engine. [ECB00991] 13. Pour the recommended coolant into the radiator until it is full. Antifreeze/water mixture
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 113
    1. Air filter case check hose 1. Place the ATV on a level surface. 2. Remove the seat. (See page 4-18.) 3. Remove the air filter case cover by unhooking the air filter case cover holders. 1. Air filter case cover holder 2. Air filter case cover 4. Pull the air filter element out of the air filter
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 114
    1. Air filter element 8 5. Pull off the air filter element lock plate, and then remove the sponge material from the air filter element frame. 1. Air filter element frame 2. Sponge material 3. Air filter element lock plate 6. Wash the sponge material gently but thoroughly in solvent. WARNING!
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 115
    case. Never operate the engine with the air filter element removed. This will allow unfiltered air to enter the engine, causing rapid engine wear and possible engine damage. Additionally, operation without the air filter element will affect carburetor jetting with subsequent poor performance and
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 116
    1. Bolt 2. Tailpipe 1. Tailpipe 2. Spark arrester 8 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. 4. Insert the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 117
    EWB02340 EBU23930 WARNING Do not start the engine when cleaning the spark arrester, otherwise it could cause injury to the eyes, burns, carbon monoxide poisoning, possibly leading to death, and start a fire. Always let the exhaust system cool prior to touching exhaust components. EBU23920 V-belt
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 118
    EBU23940 Adjusting the carburetor The carburetor should be checked and, if necessary, adjusted at the intervals specified in the periodic maintenance and lubrication chart. The carburetor is an important part of the engine and requires very sophisticated adjustment. Therefore, most carburetor
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 119
    EBU24045 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 the throttle lever.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 120
    Throttle cable free play adjusting bolt Locknut Throttle cable free play Brakes Replacement of brake components requires professional knowledge. Brake service should be performed by a Yamaha dealer. EWB02571 8 4. Tighten the locknut. 5. Slide the rubber cover to its original position. EBU24060
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 121
    EBU28413 Checking the front brake pads and rear brake friction plates The front brake pads and the rear brake friction plates must be checked for wear at the intervals specified in the periodic maintenance and lubrication chart. TIP This ATV is equipped with a wet, multiple-disc type rear brake,
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 122
    the wear indicator reaches the wear limit mark, have a Yamaha dealer replace the brake friction plates as a set. brake pads and/or brake system leakage. If the brake fluid level is low, be sure to check the brake pads for wear and the brake system for leakage. 8 1. Wear indicator 2. Wear limit
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 123
    G G G G Refill with the same type of brake fluid. Mixing fluids may result in a harmful chemical reaction and lead to poor braking performance. Be careful that water does not enter the brake fluid reservoir when refilling. Water will significantly lower the boiling point of the fluid and may
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 124
    EBU28636 Adjusting the brake pedal and rear brake lever free play and checking the brake pedal position The brake pedal and brake lever free play and the brake pedal position must be checked and, if necessary, adjusted at the intervals specified in the periodic maintenance and lubrication chart.
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 125
    1. Locknut 2. Brake lever free play adjusting bolt 1. Brake lever free play adjusting nut 2. Fully loosen the brake lever free play adjusting nut on the brake cable at the final gear case. 3. Push the brake camshaft lever in direction (a) until it stops [apply approximately 50 N (5.0 kgf, 11.0
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 126
    1. Brake pedal free play adjusting nut 2. Brake camshaft lever 3. Gap "A" 1. Brake lever free play adjusting nut 2. Brake camshaft lever 3. Gap "B" 8 4. 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 127
    1. Locknut 2. Brake lever free play adjusting bolt 1. Distance between brake pedal and footboard EBU24230 6. Tighten the locknut at the brake lever. TIP 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 not move. Checking the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 128
    EBU24752 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 129
    EWB02581 G G 1. Brake light switch 2. Brake light switch adjusting nut 3. Install the panel. EBU24901 WARNING Inspect cables frequently and replace if damaged. Corrosion can result when the cable sheaths become damaged, and cables can also become frayed or kinked, which could restrict the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 130
    Recommended lubricants: Front brake lever: Silicone grease Rear brake lever: Lithium-soap-based grease Front brake lever Rear brake lever EBU28832 8 Checking and lubricating the brake pedal The operation of the brake pedal should be checked before each ride, and the pedal pivot should be
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 131
    EBU24963 EBU24970 Checking the wheel hub bearings The front and rear wheel hub bearings must be checked at the intervals specified in the periodic maintenance and lubrication chart. If there is play in a wheel hub or if a wheel does not turn smoothly, have a Yamaha dealer check the wheel hub
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 132
    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 replace the stabilizer bushes if necessary. EBU25051 Lubricating the rear knuckle pivots The rear
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 133
    EBU29184 Battery This model is equipped with a VRLA (Valve Regulated Lead Acid) battery. There is no need to check the electrolyte or to add distilled water. However, the battery lead connections need to be checked and, if necessary, tightened. ECB00620 Batteries produce explosive gases. Keep
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 134
    ECB00930 3 4 2 1 1. 2. 3. 4. Bolt Battery holding plate Positive battery lead (red) Negative battery lead (black) NOTICE To charge a VRLA (Valve Regulated Lead Acid) battery, a special (constant-voltage) battery charger is required. Using a conventional battery charger will damage the battery. If
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 135
    To install the battery TIP Be sure the battery is fully charged. 1. Place the battery in its compartment. 2. Connect the positive battery lead first, then connect the negative battery lead by installing their bolt. EBU25326 Replacing a fuse The main fuse and the fuse box are located under the seat
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 136
    1. Main fuse 2. Spare main fuse 8 1. 2. 3. 4. 5. 6. 7. Headlight fuse Ignition fuse Auxiliary DC jack fuse Four-wheel-drive motor fuse Signaling system fuse Backup fuse (for odometer and clock) Spare fuse If a fuse is blown, replace it as follows. 1. Turn the key to "OFF" and turn off all
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 137
    2. Remove the blown fuse, and then install a new fuse of the specified amperage. WARNING! Always use a fuse of the specified rating, and never use a substitute object in place of the proper fuse. An improper fuse or a substitute object can cause damage to the electrical system, which could lead to a
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 138
    4. Remove the burnt-out bulb by pulling it out. 5. Insert a new headlight bulb into the bulb holder by pushing it in. NOTICE: Do not touch the glass part of the headlight bulb to keep it free from oil, otherwise the transparency of the glass, the luminosity of the bulb, and the bulb life will be
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 139
    7. Install the bulb holder cover and the cover at the rear of the headlight. NOTICE: Make sure the headlight bulb holder cover is securely fitted over the bulb holder and seated properly. [ECB00671] 8. Adjust the headlight beam if necessary. EBU25551 Adjusting a headlight beam ECB00690 NOTICE It
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 140
    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 burnt-out bulb by pushing it in and turning it counterclockwise. 8-58
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 141
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 142
    G Tapered nuts are used for both the front and rear wheels. Install the nuts with their tapered side towards the wheel. 1 1. Tapered nut 8 1. Arrow mark 3. Lower the ATV to the ground. 4. Tighten the wheel nuts to the specified torques. Tightening torques: Front wheel nut: 55 Nm (5.5 m·kgf, 40
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 143
    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. EWB02280 8
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 144
    EBU25782 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 145
    Engine overheating EWB02290 WARNING Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by hot fluid and steam blown out under pressure. Always put a thick rag over the cap when opening. Allow any remaining pressure to escape before completely removing the
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 146
    EBU25860 CLEANING AND STORAGE EBU25881 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 147
    presence of ammonia) and areas where strong chemicals are stored. [ECB00721] 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 148
    ly, turn the wheels a little every month in order to prevent the tires from becoming degraded in one spot. 8. Cover the muffler outlet with a plastic bag to prevent moisture from entering it. 9. Remove the battery and fully charge it. Store it in a cool, dry place and charge it once a month. Do not
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 149
    cylinder Displacement: 421 cm³ Bore × stroke: 84.5 × 75.0 mm (3.33 × 2.95 in) 10 0 10 30 50 70 90 110 130 ˚F Recommended engine oil grade: API service SG type or higher, JASO standard MA 10-1
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 150
    Engine 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, 2.11 Imp.qt) Fuel reserve amount: 4.5 L (1.19 US gal, 0.99 Imp.gal) Carburetor: Type × quantity: BSR33 x 1 Final gear oil: Type: Yamaha
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 151
    Chassis: Frame type: Steel tube frame Caster angle: 2.5 ° Trail: 8.5 mm (0.33 in) Minimum: Front: 22.0 kPa (0.220 kgf/cm², 3.2 psi) Rear: 22.0 kPa (0.220 kgf/cm², 3.2 psi) Front wheel: Wheel type: Panel wheel Rim size: 12 x 6.0AT Front tire: Type: Tubeless Size: AT25 x 8-12 Manufacturer/model:
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 152
    Spring/shock absorber type: Coil spring/oil damper Wheel travel: 160 mm (6.3 in) Rear suspension: Type: Double wishbone Spring/shock absorber type: Coil spring/oil damper Wheel travel: 180 mm (7.1 in) Electrical system: Ignition system: DC. CDI Charging system: AC magneto Reverse indicator light:
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 153
    EBU25981 CONSUMER INFORMATION EBU26012 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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 154
    1. Vehicle identification number (front left side) 1. Model label EBU29662 TIP The vehicle identification number is used to identify your ATV. EBU26050 11 Model label The model label is affixed at the location in the illustration. Record the information on this label in the space provided. This
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 155
    1 1. Vehicle Emission Control Information label 11 11-3
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 156
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 157
    ) 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 11-5
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 158
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 159
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 160
    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
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 161
    , 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 hazardous situation which, if not avoided, could result in death or serious injury. 11-9
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 162
    EBU26132 11 11-10
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 163
    INDEX A Accessories and loading ...6-6 Accessories, auxiliary jack ...4-23 Air filter element, cleaning ...8-30 Axle boots ...8-45 D Differential gear oil ...5-3, 8-24 Drive select lever ...4-14 Drive select lever and driving in reverse ...6-3 Drive select lever safety system cable, adjusting ...8-
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 164
    switch ...4-7 Override switch ...4-6 Owner's manual and tool kit ...8-1 T Tail/brake light bulb, replacing ...8-57 Throttle cable free play, adjusting ...8-37 Throttle lever ...4-11, 5-4 Tires ...5-4 Trailer hitch ...4-23 Troubleshooting ...8-61 Troubleshooting charts ...8-62 P Panels, removing
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 165
    Vehicle Emission Control Information label ...11-2 Vehicle identification number ...11-1 W Warranty, extended ...11-8 Warranty, limited ...11-6 Wheel hub bearings, checking ...8-49 Wheel, installing ...8-59 Wheel, removing ...8-59
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 166
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 167
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 168
    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 2009.04-0.3×1 CR (E)
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 169
  • 2010 Yamaha Motorsports Grizzly 450 4x4 | Owners Manual - Page 170
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This ATV should not be ridden by anyone under 16 years of age.
WARNING
OWNER’S MANUAL
37S-F8199-11
LIT-11626-23-27
YFM45FGZ
YFM45FGHZ
READ THIS MANUAL CAREFULLY!
It contains important safety information.