Periodic Checks And Adjustments; Introduction; Periodic Maintenance/Lubrication Intervals - Yamaha YFM250XL(C) Service Manual

INTRODUCTION/PERIODIC MAINTENANCE/
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.
EB301000

PERIODIC MAINTENANCE/LUBRICATION INTERVALS

ITEM
Valves*
Spark plug
Air filter
Carburetor*
Cylinder head breather
system*
Exhaust system*
Spark arrester
Fuel line*
Engine oil
Engine oil filter
Engine oil strainer
Final gear oil
Front brake*
Rear brake*
Clutch*
Wheels*
Wheel bearings*
Front and rear suspension*
LUBRICATION INTERVALS
ROUTINE
• Check valve clearance.
• Adjust if necessary.
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
• Clean.
• Replace if necessary.
• Check idle speed/starter operation.
• Adjust if necessary.
• Check breather hose for cracks or damage.
• Replace if necessary.
• Check for leakage.
• Retighten if necessary.
• Replace gasket if necessary.
• Clean.
• Check fuel hose for cracks or damage.
• Replace if necessary.
• Replace (Warm engine before draining).
• Clean.
• Clean.
• Check oil level/oil leakage.
• Replace.
• Check operation/fluid leakage/See NOTE page 13.
• Correct if necessary.
• Check operation.
• Adjust if necessary.
• Check operation.
• Adjust if necessary.
• Check balance/damage/runout.
• Repair if necessary.
• Check bearing assembly for looseness/damage.
• Replace if damaged.
• Check operation.
• Correct if necessary.
– 12 –
CHK
ADJ
INITIAL
1 3 6
month months months months
Every 20 ~ 40 hours
(more often in wet or dusty areas)
EVERY
6 1
year