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INTRODUCTION/PERIODIC MAINTENANCE
CHART FOR THE EMISSION CONTROL SYSTEM
PERIODIC INSPECTION AND ADJUSTMENT
INTRODUCTION
This chapter includes all information necessary to perform recommended inspections and adjust-
ments. These preventive maintenance procedures, if followed, will ensure more reliable 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 pre-
pared for sale. All service technicians should be familiar with this entire chapter.
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL
SYSTEM
Item
Spark plugs
Valve clearance
Cylinder head/oil tank
breather system
Fuel filter
Fuel line
Idle speed
Carburetors
Exhaust system
Remarks
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
• Check and adjust valve clearance when engine is cold.
• Check breather hose for cracks or damage.
• Replace if necessary.
• Check condition.
• Replace if necessary.
• Check fuel hose for cracks or damage.
• Replace if necessary.
• Check and adjust idle speed.
• Adjust synchronization.
• Adjust the jets.
• Check for leakage.
• Tighten or replace gasket if necessary.
(elevation/temperature) is changed.
1
INSP
ADJ
Initial
Every
1 month
Seasonally
or
or
800 km
4,000 km
(500 mi)
(2,500 mi)
(40 hr)
(200 hr)
Every 40,000 km (25,000 mi)
Whenever operating condition
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