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Diagnose & Troubleshoot Self-Propelled Mowers
Select one of the symptoms below to find possible causes and common solutions
Engine runs erratic
|Possible Causes||Corrective Actions|
1Spark plug wire loose
Connect and tighten spark plug wire
Blocked fuel line or stale fuel
Clean fuel line and fill tank with fresh gas
Vent in gas cap is plugged
Water or dirt in fuel system
Drain fuel tank and refill with fresh fuel
Carburetor is out of adjustment
Adjust carburetor according to your engine manual
Engine is overfilled with oil
Drain oil and fill to proper amount