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MAINTENANCE
TP-6901 6/14 Maintenance 29
Check and Clean the Air Filter
Refer to the Equipment Operation Manual using this
engine installation.
Replace the Air Filter
Refer to the Equipment Operation Manual using this
engine installation.
Check and Adjust the Spark Plugs
Damaged, loose, or improperly adjusted spark plugs
can overheat or cause engine problems such as
misfiring, hesitation, or knocking. Check the spark
plugs after each 500 hours of operation.
Required materials:
• Spark plug wrench
• Torque wrench
• Spark plug gap tool
• Clean, dry cloth
Procedure:
1. Stop the engine and allow it to cool.
!
CAUTION
Electrical shock can cause injury.
Do not touch wires while engine is
running.
WARNING
!
Hot parts can cause severe burns.
Do not touch engine while operating
or just after stopping.
Never operate engine with heat shields or guards
removed.
NOTICE
Label or mark spark plug wires before
disconnecting. Spark plug wires MUST be
reinstalled in proper order as removed.