Periodic Maintenance/Lubrication - Yamaha BIGBEAR YFM400NM Owner's Manual

EBU00261

PERIODIC MAINTENANCE/LUBRICATION

ITEM
Valves*
Spark plug
Air filter
Carburetor*
Cylinder head cover
breather system*
Exhaust system*
Spark arrester
Fuel line*
Engine oil
Engine oil filter
Engine oil strainer
Final 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.
• Retighten if necessary.
• Replace gasket if necessary.
• Clean.
• Check fuel hose for cracks or damage.
• Replace if necessary.
• Replace (Warm engine before draining).
• Replace.
• 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.
• Check operation.
• Adjust if necessary.
month
8-3
INITIAL
1 3 6
months months months
Every 20~40 hours
(More often in wet or dusty areas.)
EVERY
6 1
year