Troubleshooting
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24
Problem Cause(s)
Engine will not start Battery has low voltage.1.
Loose or corroded battery connections.2.
Fuse is blown.3.
No Fuel or improper fuel.4.
Plugged fuel filter.5.
Air or water is in the fuel system.6.
In Winter, oil viscosity increases, and engine revolution is slow.7.
Defective starter solenoid.8.
Open-circuit in wiring.9.
Engine is difficult to start Engine is cold.1.
Plugged fuel filter.2.
Engine oil viscosity too heavy.3.
Loose or corroded electrical connections.4.
Stale or improper fuel.5.
Engine misses under load Stale or dirty fuel.1.
Plugged fuel filter.2.
Engine vapor locks Poor quality fuel.1.
Very hot weather conditions.2.
Fuel tank vent plugged.3.
Dirt in fuel filter.4.
Engine runs unevenly Loose electrical connections.1.
Throttle cable sticking.2.
Fuel line or fuel filter plugged.3.
Stale or dirty fuel.4.
Improper fuel.5.
Air cleaner element plugged.6.
Engine fumes are colored (Black) Fuel quality is poor.1.
Too much oil.2.
The air cleaner is clogged.3.
Engine fumes are colored (Blue white) The inside of exhaust muffler is dumped with fuel.1.
Injection nozzle trouble.2.
Poor quality fuel.3.
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