Maintenance
80
VF250XA
EMU40665
Inspecting spark plug
The spark plug is an important engine com-
ponent. The condition of the spark plug can
indicate something about the condition of the
engine. For example, if the center electrode
porcelain is very white, this could indicate an
intake air leak or carburetion problem in that
cylinder. Do not attempt to diagnose any
problems yourself. Instead, take the out-
board motor to a Yamaha dealer. You should
periodically remove and check the spark
6CB-9-3B-1E0.book 80 ページ ２０１７年１１月１６日 木曜日 午後５時２９分
©2019 Yamaha Motor Corporation, U.S.A.
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