Periodic Checks And Adjustments; Introduction; Periodic Maintenance/Lubrication - Yamaha YFM35FAS Supplementary Service Manual

PERIODIC MAINTENANCE/LUBRICATION

EB300000

PERIODIC CHECKS AND ADJUSTMENTS

INTRODUCTION

This chapter includes all information necessary to perform recommended checks and adjustments.
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.
PERIODIC MAINTENANCE/LUBRICATION
ITEM
• Check valve clearance.
Valves*
• Adjust if necessary.
• Check condition.
Spark plug • Adjust gap and clean.
• Replace if necessary.
• Clean.
Air filter element
• Replace if necessary.
• Check and adjust idle speed/starter operation.
Carburetor*
• Adjust if necessary.
Crankcase breather • Check breather hose for cracks or damage.
system* • Replace if necessary.
• Check for leakage.
Exhaust system* • Tighten if necessary.
• Replace gasket(s) if necessary.
• Check fuel hose for cracks or damage.
Fuel line*
• Replace if necessary.
Engine oil • Replace. (Warm engine before draining.)
Engine oil filter
• Replace.
cartridge
Engine oil strainer* • Clean.
Final gear oil
• Check for oil leakage.
• Replace every 12 months.
Differential gear oil
• Check operation/fluid leakage. (See NOTE page 35.)
Front brake*
• Correct if necessary.
• Check operation.
Rear brake
• Adjust if necessary.
• Check operation.
V-belt*
• Check for cracks or damage.
• Check balance/damage/runout.
Wheels*
• Repair if necessary.
• Check bearing assemblies for looseness/damage.
Wheel bearing*
• Replace if damaged.
• Check operation.
Front and rear
suspension* • Correct if necessary.
• Check operation./Replace if damaged.
Steering system*
• Check toe-in./Adjust if necessary.
Drive shaft universal
• Lubricate.
joint*
• Check operation.
Axle boots*
• Replace if damaged.
INTRODUCTION/
ROUTINE
– 34 –
CHK
ADJ
INITIAL
1 3 6
month months months
Every 20 ~ 40 hours
(More often in wet or dusty areas.)
EVERY
6 1
months year