Cleaning
1. Clean the spark plug using a wire brush or plug cleaner.
2. Grind the electrode with sandpaper to adjust the gap as
specified.
Standard clearance : 0.9 to 1.0 mm
3. Replace the spark plug.
7.7.3 Fuel Cock (Fuel Filter)
• Clean fuel filter every 100 hours of operation.
• Clean filter in a neat non-dusty place.
Cleaning
1. Check and confirm that fuel cock is closed.
2. Remove filter pot, oil seal and fuel filter.
3. Remove deposits (dust or water etc.) inside of filter pot.
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7
MAINTENANCE
2. Remove the spark plug using a plug wrench.
3. Check the plug for the following points and clean or
replace it as necessary. (Specifications for spark plug :
Page 11)
•Presence or absence of breakage of the insulator
•Worn electrode
• Carbon deposit
• Damage to and breakage of gasket
•Degree of burning of insulator in spark section
Degree of burning
Damage
Breakage
Wear, car-
bon deposit
Fuel
filter
Oil
seal
Filter
pot
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