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Troubleshooting guide – Shindaiwa 81601 User Manual

Page 16

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16

Troubleshooting Guide

ENGINE DOES NOT START

Does the engine crank?

Faulty recoil starter.

Fluid in the crankcase.

Internal damage.

Consult with an authorized

servicing dealer.

Consult with an authorized servicing dealer.

Consult with an authorized servicing dealer.

NO

Good compression?

Loose spark plug. Excess wear on

cylinder, piston, rings.

Tighten and retest.

NO

YES

Does the tank contain fresh

fuel of the proper grade?

Refill with clean fresh unleaded gasoline with a

pump octane of 87 or higher, mixed with

Shindaiwa Premium 2-cycle mixing oil at a

50:1 gasoline/oil ratio.

Fuel incorrect, stale, or contaminated;

mixture incorrect.

NO

YES

Is fuel visible and moving in

the return line when priming?

Check for clogged fuel filter and/or vent.

Replace fuel filter or vent as required. Restart.

NO

Is there spark at the spark

plug wire terminal?

The ignition switch is in “O” (OFF)

position. Shorted ignition system.

Faulty ignition unit.

Move switch to “I” (ON) position and re-start.

NO

YES

YES

Check the spark plug.

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.

Crank the engine with the plug removed,

replace the plug, and re-start.

Clean and re-gap the plug to 0.024 inch

(0.6 mm). Re-start.

Replace the plug with a Champion CJ8 or

equivalent type spark plug of the correct

heat range.

YES

What To Check

Possible Cause

Remedy

ENGINE DOES NOT START

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