Troubleshooting Guide

ENGINE DOES NOT START

What To Check

 

 

 

Possible Cause

 

NO

 

Faulty recoil starter.

 

 

Does the engine crank?

 

Fluid in the crankcase.

 

 

 

 

Internal damage.

 

 

 

 

 

Remedy

Consult with an authorized servicing dealer.

YES

Good compression?

NO

Loose spark plug.

Excess wear on cylinder, piston, rings.

Tighten and re-test.

Consult with an authorized servicing dealer.

YES

 

 

NO

 

Fuel incorrect, stale, or contaminated;

 

 

 

Does the tank contain

 

mixture incorrect.

fresh fuel of the proper

 

 

 

 

 

 

 

 

 

 

grade?

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

NO

 

Check for clogged fuel filter and/

 

 

 

 

 

Is fuel visible and moving

 

in the return line when

 

 

 

 

or vent.

 

 

 

 

priming?

 

 

 

 

 

 

 

 

 

 

 

 

Refill with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with a premium 2-cycle mixing oil or with an equivalent high quality 2-cycle mixing oil.

Replace fuel filter or vent as required. Restart.

YES

Is there spark at the spark plug wire terminal?

YES

Check the spark plug.

The ignition switch is in “O” (OFF) NO position.

Shorted ignition ground.

Faulty ignition unit.

If the plug is wet, excess fuel may be in the cylinder.

The plug is fouled or improperly gapped.

The plug is damaged internally or of the wrong size.

Move switch to “I” (ON) position and restart.

Consult with an authorized servicing dealer.

Crank the engine with the plug removed, reinstall the plug, and restart.

Clean the spark plug. Check the Specifications section for the correct plug and gap for your unit. Restart.

Replace the spark plug. Check the Specifications section for the correct plug and gap for your unit. Restart.

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Shindaiwa C2510/EVC, 89303 manual Troubleshooting Guide, Engine does not Start, What To Check, Remedy