Yamaha YFM660FR Service Manual download pdf (Page 20)

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CHK

ADJ

INTRODUCTION/PERIODIC MAINTENANCE/

LUBRICATION

EB300000

PERIODIC CHECKS AND ADJUSTMENTS

INTRODUCTION

This chapter includes all information necessary to perform recommended inspections and adjust-

ments. These preventive maintenance procedures, if followed, will ensure more reliable 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 vehicles that are being prepared

for sale. All service technicians should be familiar with this entire chapter.

EBU00261

PERIODIC MAINTENANCE/LUBRICATION

ITEM ROUTINE

INITIAL EVERY

Whichever

comes first

(mile)

320

(200)

1,200

(750)

2,400

(1,500)

2,400

(1,500)

4,800

(3,000)

hours 20 75 150 150 300

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.

Crankcase breather

system*

• Check breather hose for cracks or damage.

• Replace if necessary.

Exhaust system*

• Check for leakage.

• Retighten if necessary.

• Replace gasket(s) if necessary.

Fuel line*

• Check fuel hose for cracks or damage.

• Replace if necessary.

Engine oil

• Replace (Warm engine before draining).

Engine oil filter car-

tridge

• Replace.

Final gear oil

• Check oil level/oil leakage.

• Replace.

Differential gear oil

Front brake*

• Check operation/fluid leakage/see NOTE page 13.

• Correct if necessary.

Rear brake*

• Check operation/fluid leakage/see NOTE page 13.

• Correct if necessary.

V-belt*

• Check operation.

• Check for cracks or damage.

Wheels*

• Check balance/damage/runout.

• Repair if necessary.

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Yamaha YFM660FR Service Manual Page 20

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