Shindaiwa EB2510, EB3410/EVC manual Troubleshooting Guide, What To Check, Possible Cause, Remedy

Troubleshooting Guide

ENGINE DOES NOT START

What To Check		Possible Cause	Remedy
	NO	Faulty recoil starter.
Does the engine crank?			Consult with an authorized
		Fluid in the crankcase.
			servicing dealer.
YES		Internal damage.
	NO	Loose spark plug.	Tighten and re-test.
Good compression?
		Excess wear on cylinder, piston, rings.	Consult with an authorized
YES			servicing dealer.
	NO	Fuel incorrect, stale, or contaminated;	Refill with clean, fresh unleaded
Does the tank contain fresh
		mixture incorrect.	gasoline with a pump octane of 87 or
fuel of the proper grade?			higher, mixed with a 2-cycle air cooled
			mixing oil that meets or exceeds ISO-L-
			EGD and/or JASO FC classified oils at
YES			50:1 gasoline/oil ratio.
	NO	Check for clogged fuel filter and/or vent.	Replace fuel filter or vent as required.
Is fuel visible and moving in
			Re-start.
the return line when priming?		Priming pump not functioning properly.	Consult with an authorized
YES			servicing dealer.

Is there spark at the spark plug wire terminal?

YES

NO

The ignition switch is in “O” (OFF) position.

Shorted ignition ground.

Faulty ignition unit.

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

Consult with an authorized servicing dealer.

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, re-install the plug and re-start.

Clean and re-gap the plug to 0.6 mm (0.024 in.). Re-start.

Replace the plug with a NGK CMR5H or equivalent resistor type spark plug of the correct heat range. Set spark plug electrode gap to 0.6mm (0.024 in.).

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