34
Troubleshooting
e. Add engine oil, if the engine oil level is low.
f. Consult a Yamaha dealer, if the engine oil level
is correct.
3. Check the spark plug.
a. Turn the engine switch to “ ” (ON).
b. Check the spark plug for spark strength.
c. Clean the spark plug if it has excessive carbon
deposits.
d. Check the spark plug gap, and adjust it if it is
incorrect.
• To prevent FIRE HAZARDS be sure fuel is not
present in the spark plug area.
• To prevent FIRE HAZARDS be sure to place the
spark plug as far away as possible from the
spark plug hole and carburetor area.
• To prevent ELECTRIC SHOCK do not hold spark
plug lead with hand while testing.
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
7VE-F8199-70-E0.book 34 ページ ２０１６年１１月１５日 火曜日 午後５時３５分
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