Yamaha YFM400FAR Service Manual

Also see for YFM400FAR: Owner's manual Service manual Assembly manual

Contents

3 - 1CHKADJINTRODUCTION/PERIODIC MAINTENANCE/LUBRICATIONEB300000PERIODIC CHECKS AND ADJUSTMENTSINTRODUCTIONThis chapter includes all information necessary to perform recommended checks and adjustments.These preventive maintenance procedures, if followed, will ensure more reliable vehicle operationand a longer service life. The need for costly overhaul work will be greatly reduced. This informationapplies to vehicles already in service as well as to new vehicles that are being prepared for sale. Allservice technicians should be familiar with this entire chapter.PERIODIC MAINTENANCE/LUBRICATIONITEM ROUTINEINITIAL EVERY1month3months6months6months1yearValves* • 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 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 breathersystem*• Check breather hose for cracks or damage.• Replace if necessary.Exhaust system*• Check for leakage.• Tighten if necessary.• Replace gasket(s) 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 filtercartridge • Replace.Engine oil strainer* • Clean.Final gear oil • Check for oil leakage.• Replace every 12 months.Differential gear oilFront brake* • Check operation/fluid leakage. (See NOTE page 3-2.)• Correct if necessary.Rear brake • Check operation.• Adjust if necessary.V-belt* • Check operation.• Check for cracks or damage.Wheels* • Check balance/damage/runout.• Repair if necessary.Wheel bearing* • Check bearing assemblies for looseness/damage.• Replace if damaged.3