Troubleshooting Guide
ENGINE DOES NOT START
What To Check | Possible Cause |
Remedy
Does the engine crank?
YES
Good compression?
NO
NO
Faulty recoil starter.
Fluid in the crankcase.
Internal damage.
Loose spark plug.
Excess wear on cylinder, piston, rings.
Consult with an authorized servicing dealer.
Tighten and
Consult with an authorized servicing dealer.
YES
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| NO |
| Fuel incorrect, stale, or contaminated; | ||
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Does the tank contain |
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fresh fuel of the proper |
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grade? |
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YES |
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| NO |
| Check for clogged fuel filter and/or | ||
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Is fuel visible and moving |
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in the return line when |
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| vent. | |
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priming? |
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Refill with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with 50:1 Shindaiwa Premium
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 and regap the plug to .024” / 0.6mm- 0.7mm. Restart.
Replace the spark plug. Check the
“Specifications” section for the correct plug for your unit. Restart.
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