TROUBLESHOOTING CHART Engine will not start 1. No fuel.
2. Throttle lever in “STOP” position.
3. Spark plug wire loose or disconnected.
4. Spark plug faulty or improperly gapped (p. 26).
5. Engine flooded (p. 16).
6. Dirty air cleaner.
Hard starting or loss of power 1. Dirt in gas tank.
2. Dirty air cleaner.
Erratic operation
Engine overheats
Excessive vibration
3. Water in gas tank or carburetor.
4. Vent in gas cap and/or carburetor clogged.
1. Spark plug faulty or improperly gapped (P. 26).
2. Dirty air cleaner.
1. Spark plug improperly gapped.
2. Dirty air cleaner.
3. Dirty. cooling fins.
4. Low oil level.
5. Starter pulley clogged by grass, etc.
1. Loose blade or engine mounting hardware.
2. Blade unbalanced.
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