Yamaha YFM400FWA 2000 5GH3-AE1, Service Manual

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INSP
ADJ
INTRODUCTION/PERIODIC MAINTENANCE/
LUBRICATION INTERVALS
EB300000
PERIODIC INSPECTIONS AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended inspections and
adjustments. These preventive maintenance procedures, if followed, will ensure more reli-
able vehicle operation and a longer service life. The need for costly overhaul work will be
greatly reduced. This information applies to vehicles already in service as well as to new vehi-
cles that are being prepared for sale. All service technicians should be familiar with this entire
chapter.
EB301000
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
* It is recommended that these items be serviced by a Yamaha dealer.
ITEM ROUTINE
INITIAL EVERY
1
month
3
months
6
months
6
months
1
year
Valves*
• Check valve clearance.
• Adjust if necessary.
Cooling system
• Check coolant leakage.
• Repair if necessary.
• Replace coolant every 24 months.
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.
Fuel line*
• Check fuel hose for cracks or damage.
• Replace if necessary.
Engine oil • Replace (warm engine before draining).
Engine oil filter • Replace.
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.
• Correct if necessary.
Rear brake*
• Check operation/fluid leakage.
• Correct if necessary.
V-belt*
• Check operation.
• Check for cracks or damage every 12 months or
2.400 km (1.500 mi), whichever comes first.
Wheels*
• Check balance/damage/runout.
• Repair if necessary.
Wheel bearing*
• Check bearing assemblies for looseness/damage.
• Replace if damaged.
Front and rear
suspension* • Check operation.
• Correct if necessary.
Steering system*
• Check operation/replace if damaged.
• Check toe-in/adjust if necessary.
Front axle boots*
• Check operation.
• Replace if damaged.
Fittings and fasten-
ers* • Check all chassis fittings and fasteners.
• Correct if necessary.