Table of Contents
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Item
Crankcase breather
hose
Cylinder head
Valve clearance
Idle speed
Recoil starter
Fittings / fasteners
The point where abnormality was recognized by use.
*1 .... Initial replacement of the engine oil is after one month or 20 hours of operation.
*2 .... The air filter element needs to be cleaned more frequently when using in unusually wet or
dusty areas.
★ ..... Since these items require special tools, data and technical skills, have a Yamaha dealer per-
form the service.
Routine
• Check breather hose for cracks or
damage.
• Replace if necessary.
• Decarbonize cylinder head.
• More frequently if necessary.
• Check and adjust when engine is cold.
• Check and adjust idle speed.
• Check recoil starter for damage.
• Check all fittings and fasteners.
• Correct if necessary.
– 24 –
Every
Pre-
operation
6 months
check
or 100 Hr
After every 500 Hrs.
2
12 months
or 300 Hr
2
★
★
★
★
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