2005 Yamaha Motorsports Big Bear 400 4x4 Owners Manual - Page 112

2005 Yamaha Motorsports Big Bear 400 4x4 Manual

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EBU02611 PERIODIC MAINTENANCE/LUBRICATION NOTE: _ G G For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals. 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 isn't used for a long period of time, the month maintenance intervals should be followed. INITIAL 3 1,200 (750) 75 EVERY 6 12 2,400 4,800 (1,500) (3,000) 150 300 _ ITEM ROUTINE Whichever month comes first km (mi) hours 1 320 (200) 20 6 2,400 (1,500) 150 Valves* Spark plug* Air filter element Carburetor* Crankcase breather system* Exhaust system* Spark arrester Fuel line* Engine oil Check valve clearance. Adjust if necessary. Check condition. Adjust gap and clean. Replace if necessary. Clean. Replace if necessary. Check and adjust idle speed/starter operation. Adjust if necessary. Check breather hose for cracks or damage. Replace if necessary. Check leakage. Tighten if necessary. Replace gasket if necessary. Clean. Check fuel hose for cracks or damage. Replace if necessary. Replace (Warm engine before draining). Every 20-40 hours (More often in wet or dusty areas.) 8-3

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8-3
EBU02611
PERIODIC MAINTENANCE/LUBRICATION
NOTE:
_
●
For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
●
For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance in-
tervals. However, keep in mind that if the ATV isn’t used for a long period of time, the month mainte-
nance intervals should be followed.
_
ITEM
ROUTINE
Whichever
comes first
INITIAL
EVERY
month
1
3
6
6
12
km
(mi)
320
(200)
1,200
(750)
2,400
(1,500)
2,400
(1,500)
4,800
(3,000)
hours
20
75
150
150
300
Valves*
•
Check valve clearance.
•
Adjust if necessary.
Spark plug*
•
Check condition.
•
Adjust gap and clean.
•
Replace if necessary.
Air filter element
• Clean.
•
Replace if necessary.
Every 20–40 hours
(More often in wet or dusty areas.)
Carburetor*
•
Check and adjust idle speed/starter operation.
•
Adjust if necessary.
Crankcase
breather system*
•
Check breather hose for cracks or damage.
•
Replace if necessary.
Exhaust system*
•
Check leakage.
•
Tighten if necessary.
•
Replace gasket if necessary.
Spark arrester
• Clean.
Fuel line*
•
Check fuel hose for cracks or damage.
•
Replace if necessary.
Engine oil
•
Replace (Warm engine before draining).