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INTRODUCTION/
PERIODIC MAINTENANCE/LUBRICATION
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 machine operation and a longer service life. In addition, the need for costly overhaul
work will be greatly reduced. This information applies to machines already in service as well
as new machines that are being prepared for sale. All service technicians should be familiar
with this entire chapter.
PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINE
INITIAL EVERY
1
month
3
months
6
months
6
months
1
year
Valves*
• Check valve clearance.
• Adjust if necessary.
Spark plug
• Check condition.
• Clean or replace if necessary.
Air filter
• Clean.
• Replace if necessary.
Every 20~40 hours
(More often in wet or dusty area.)
Carburetor*
• Check idle speed/starter operation.
• Adjust if necessary.
Cylinder head
breather system*
• Check breather hose for cracks or damage.
• Replace if necessary.
Exhaust system*
• Check for leakage.
• Retighten for necessary.
• Replace gasket if necessary.
Fuel line*
• Check fuel hose for cracks or damage.
• Replace if necessary.
Engine oil • Replace (Warm engine before draining).
Engine oil filter • Clean.
Engine oil strainer • Clean.
Final gear oil
• Check oil level/oil leakage.
• Replace every 12 months.
Brakes*
• Check operation.
• Adjust if necessary.
Clutch*
• Check operation.
• Adjust if necessary.
Wheels*
• Check balance/damage/runout.
• Replace if necessary.
Wheel bearings*
• Check bearing assembly for looseness/
damage.
• Replace if damaged.
Front and rear sus-
pension*
• Check operation.
• Correct if necessary.
Steering system*
• Check operation.
• Replace if damaged.
• Check toe-in.
• Adjust if necessary.
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