40
1. ENGINE WON’T TURN OVER
Mower blades engaged- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - disengage blades
Blown fuse- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -replace fuse
Dead battery- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -charge or replace
Solenoid- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -consult dealer
Ignition switch- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - consult dealer
Starter- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -consult dealer
Parking brake not set - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - engage parking brake
2. ENGINE WILL TURN OVER BUT WON’T START
No fuel- - - - - - - - - - - - - - - - - - - - - - - - - - - - -refuel and/or clean or replace fuel filters
Over or under choked- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -adjust choke
Spark plug not firing- - - - - - - - - - - - - - - - - - - - - - - -check spark plug/spark plug wires
Carburetor maladjustment- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - consult dealer
Ignition switch- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - consult dealer
3. HARD TO START ENGINE
No fuel- - - - - - - - - - - - - - - - - - - - - - - - - - - - - refuel and/or clean or replace fuel filters
Fuel line clogged- - - - - - - - - - - - - - - - - - - - - - - - - -clean fuel line and check fuel filter
Faulty fuel pump- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -consult dealer
Spark plug wire loose or grounded - - - - - - - - - - - - - - - - - - - - - check spark plug wires
Spark plug(s) faulty or improperly gapped- - - - - - - - - - - - - - - -check spark plug/regap
Electronic ignition defective- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - consult dealer
Dirty or maladjusted carburetor- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -consult dealer
4. ENGINE STARTS BUT CUTS OUT
Water in fuel- - - - - - - - - - - - - - - - - - - - - - - - - - - drain old fuel-replace with new fuel
Clogged fuel line- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - clean or replace fuel line
Fuel tank vent plugged- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - check vent and clean
Faulty fuel pump- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - replace/consult dealer
Maladjusted carburetor- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -consult dealer
5. ENGINE KNOCKS
Low oil level- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - check and add oil
Fuel octane too low- - - - - - - - - - - - - - - - - - - - - - -replace with higher octane gasoline
Over heated engine- - - - - - - - - - - - -shut off engine and allow to cool/consult dealer
*see engine manual for engine adjustments
TROUBLESHOOTING
