2004 Yamaha Motorsports Big Bear 400 4x4 Owners Manual - Page 112

2004 Yamaha Motorsports Big Bear 400 4x4 Manual

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EBU00261 PERIODIC MAINTENANCE/LUBRICATION ITEM Valves* Spark plug Air filter element Carburetor* Crankcase breather system* Exhaust system* Spark arrester Fuel line* Engine oil Engine oil filter element Engine oil strainer Final gear oil Differential gear oil Front brake* Rear brake* Clutch ROUTINE 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). Clean. Clean. 1 month INITIAL EVERY 3 6 6 1 months months months year Every 20-40 hours (More often in wet or dusty areas.) • 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. Check operation. Adjust if necessary. 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 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).
Engine oil filter element
• 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.
Clutch*
•
Check operation.
•
Adjust if necessary.