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*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 perform the ser-
vice.
Item Routine
Pre-
operation
check
Every
6 months
or 100 Hr
12 months
or 300 Hr
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 when engine is cold. ★
Fittings / fasteners
• Check all fittings and fasteners.
★
• Correct if necessary.
The point where abnormality was recognized by use. 1
7CK-28199-12_a 11.3.21 13:17 Page 28
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