2003 Yamaha Motorsports Big Bear 400 4x4 Owners Manual - Page 114

2003 Yamaha Motorsports Big Bear 400 4x4 Manual

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EBU00261 PERIODIC MAINTENANCE/LUBRICATION INITIAL ITEM • 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. • Retighten if necessary. • Replace gasket if necessary. • Clean. • Check fuel hose for cracks or damage. • Replace if necessary. • Replace (Warm engine before draining). • Clean. • Clean. • Check oil level/oil leakage. • Replace every 12 months. • Check operation/fluid leakage/see NOTE page 8-4. • Correct if necessary. • Check operation. • Adjust if necessary. Every 20-40 hours (More often in wet or dusty areas.) ROUTINE 1 month EVERY 1 year 3 6 6 months months months Valves* Spark plug Air filter Carburetor* Cylinderhead cover breather system* Exhaust system* Spark arrester Fuel line* Engine oil Engine oil filter Engine oil strainer Final gear oil Differential gear oil Front brake* Rear brake* 8-3

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8-3
EBU00261
PERIODIC MAINTENANCE/LUBRICATION
ITEM
ROUTINE
INITIAL
EVERY
1
month
3
months
6
months
6
months
1
year
Valves*
•
Check valve clearance.
•
Adjust if necessary.
Spark plug
•
Check condition.
•
Adjust gap and clean.
•
Replace if necessary.
Air filter
• 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.
Cylinderhead cover
breather system*
•
Check breather hose for cracks or damage.
•
Replace if necessary.
Exhaust system*
•
Check leakage.
•
Retighten 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).
Engine oil filter
• Clean.
Engine oil strainer
• Clean.
Final gear oil
•
Check oil level/oil leakage.
•
Replace every 12 months.
Differential gear oil
Front brake*
•
Check operation/fluid leakage/see NOTE page 8-4.
•
Correct if necessary.
Rear brake*
•
Check operation.
•
Adjust if necessary.