Engine
Starter motor does not operate or does not turn engine over
1. Engine run switch in off position.
2. Ignition switch not on.
3. Discharged battery , loose or corroded connections (solenoid chatters).
4. Start control circuit, relay or solenoid damaged.
5. Electric starter shaft pinion gear not engaging.
Engine turns over but does not start
1. Fuel tank empty.
2. Fuel supply valve turned off.
3. Fuel supply supply valve or filter clogged.
4. Discharged battery, loose or corroded connections.
5. Fouled spark plugs.