Troubleshooting - Honda HRB425C Owner's Manual

TROUBLESHOOTING

Problem
Engine does not start
Starting difficult or loss of
power
Uneven running
Engine overheats
Mower vibrates excessively
74
Probable cause
1. No gas.
2. Throttle lever is in "STOP" position.
3. Spark plug cord incorrectly attached or
disconnected.
4. Spark plug defective or incorrect gap.
5. Engine flooded.
6. The blade brake lever is not firmly held
against the handle (models fitted).
1. Impurities in fuel tank and/or fuel filter.
2. Air cleaner dirty.
3. Water in gas tank and in carburetor.
4. Fuel tank filler cap vent and/or carburetor
obstructed.
1. Spark plug defective or incorrect gap.
2. Air cleaner dirty.
1. Spark plug gap incorrect.
2. Air cleaner dirty.
3. Engine cooling fins clogged.
4. Oil level too low.
5. Starter pulley clogged by grass cuttings, etc..
1. Blade or engine bolts slack.
2. Blade unbalanced.
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