Periodic Maintenance; Spark Plug - Yamaha EF7000 Service Manual

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PERIODIC MAINTENANCE

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PERIODIC MAINTENANCE

SPARK PLUG

WARNING
Check and adjust the areas around the cyl-
inder head after the engine has cooled
down completely.
1. Remove:
9 Spark plug cap 1
9 Spark plug
NOTICE
Before removing the spark plug, use com-
pressed air to clean the cylinder head
cover to prevent dirt from falling into the
engine.
2. Check:
9 Spark plug type
Not correct → Replace
Spark plug type:
BPR4ES (NGK)
9 Electrode 1
Wear/damage → Replace.
9 Insulator color 2
Not normal → Replace.
CHK
ADJ