Troubleshooting Guide
ENGINE DOES NOT START OR HARD TO START
What To Check
Vaporlock.
Valve adjustment.
Possible Cause
Engine hot/heat soaked. Low fuel quality.
Valve clearance too tight. Valve clearance too loose.
Remedy
Let cool completely and restart.
Refill with fresh, clean unleaded gasoline with a pump octane of 89 or higher mixed with an air cooled engine oil that meets or exceeds
Consult with an authorized Shindaiwa servicing dealer. Adjust valves.
ENGINE DOES NOT START
What To Check |
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| Possible Cause |
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| Remedy | ||||
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| Faulty recoil starter. |
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| Consult with an authorized Shindaiwa servicing dealer. | |
Does the engine crank? |
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| Fluid in the crankcase. |
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YES |
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| Internal damage. |
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| NO |
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| Loose spark plug. |
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| Tighten and | |||
Good compression? |
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| Consult with an authorized Shindaiwa | |||||||
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| Excess wear on cylinder, |
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YES |
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| piston, rings. |
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| servicing dealer. | |||
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| NO |
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| Fuel incorrect, stale, or |
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| Refill with fresh, clean unleaded gasoline with a pump octane | |
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Does the tank contain fresh |
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| contaminated; mixture incorrect. |
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| of 89 or higher mixed with an air cooled engine oil that | |||
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| meets or exceeds | ||
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fuel of the proper grade? |
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| at 50:1 gasoline/oil ratio. | |
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YES |
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| Check for clogged fuel filter |
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| Replace fuel filter or vent as required. | |||
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Is fuel visible and moving |
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| and/or vent. |
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in the return line when |
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| Priming pump not functioning properly. |
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| Consult with an authorized Shindaiwa | ||||
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priming? |
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| servicing dealer. | ||
YES |
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| NO |
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| The ignition switch is in |
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| Move switch to “I” (ON) position | |||
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Is there spark at the spark |
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| “O” (OFF) position. |
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| and | |||||
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plug wire terminal? |
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| Shorted ignition ground. |
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| Consult with an authorized Shindaiwa | ||||
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| servicing dealer. |
YES |
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| Faulty ignition unit. | |||||||
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| If the plug is wet, excess |
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| See "Starting a Flooded Engine" | |||
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Check the spark plug. |
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| fuel may be in the cylinder. |
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| Clean and gap the spark plug. Check the Specifications | ||||
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| The plug is fouled or improperly |
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| gapped. |
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| section for the correct plug and gap for your unit. Restart. | |||
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| The plug is damaged internally |
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| Replace the spark plug. Check the Specifications section for | |||
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| or of the wrong size. |
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| the correct plug and gap for your unit. Restart. | |||
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18
