– 26 –
*1····· Initial replacement of the engine oil is after one month or 20 hours of operation.
*2····· The air filter element needs to be replaced more frequently when using in unusually wet or dusty areas.
★
····· Since these items require special tools, data and technical skills, have a Yamaha dealer perform the ser-
vice.
Item
Routine
Pre-
operation
check
Every
6 months
or 100 Hr
12 months
or 300 Hr
Fuel strainer
• Clean and replace if necessary
1
Battery
• Check the fluid level.
1
• Add only distilled water if necessary.
Crankcase breather
• Check breather hose for cracks or
hose
damage.
1
• Replace if necessary.
Cylinder head
• Decarbonize cylinder head.
★
• More frequently if necessary.
Valve clearance
• Check and adjust valve clearance.
★
Idle speed
• Check and adjust idle speed.
★
Recoil starter
• Check recoil starter for damage.
★
Fittings / fasteners
• Check all fittings and fasteners.
★
• Correct if necessary.
The point where abnormality was recognized by use.
1
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