Shindaiwa DH235 Operator's Manual download pdf (Page 18)

Troubleshooting Guide

Vaporlock.

Engine hot/heat soaked.

Low fuel quality.

Let cool completely and restart.

Reﬁ ll with fresh, clean unleaded gasoline with a pump

octane of 89 or higher mixed with a 2 stroke engine oil that

meets or exceeds ISO-L-EGD and/or JASO FD classiﬁ ed

oils at 50:1 gasoline/oil ratio.

What To Check

Possible Cause

Remedy

ENGINE DOES NOT START OR HARD TO START

Does the engine crank?

Good compression?

Does the tank contain fresh

fuel of the proper grade?

Is fuel visible and moving

in the return line when

priming?

Is there spark at the spark

plug wire terminal?

Check the spark plug.

Faulty recoil starter.

Fluid in the crankcase.

Internal damage.

Loose spark plug.

Excess wear on cylinder,

piston, rings.

Fuel incorrect, stale, or

contaminated; mixture incorrect.

Check for clogged fuel ﬁ lter

and/or vent.

Priming pump not functioning properly.

The ignition switch is in

“O” (OFF) 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.

Consult with an authorized shindaiwa servicing dealer.

Tighten and re-test.

Consult with an authorized shindaiwa

servicing dealer.

Reﬁ ll with fresh, clean unleaded gasoline with a pump

octane of 89 or higher mixed with a 2 stroke engine oil that

meets or exceeds ISO-L-EGD and/or JASO FD classiﬁ ed

oils at 50:1 gasoline/oil ratio.

Replace fuel ﬁ lter or vent as required.

Re-start.

Consult with an authorized shindaiwa

servicing dealer.

Move switch to “I” (ON) position

and re-start.

Consult with an authorized shindaiwa

servicing dealer.

See "Starting a Flooded Engine"

Clean and gap the spark plug. Check the Speciﬁ cations

section for the correct plug and gap for your unit. Restart.

Replace the spark plug. Check the Speciﬁ cations section

for the correct plug and gap for your unit. Restart.

YES

What To Check Possible Cause Remedy

ENGINE DOES NOT START

YES

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Shindaiwa DH235 Operator's Manual Page 18

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