Troubleshooting Guide - Shindaiwa T2510 Operator's Manual

Troubleshooting Guide

What To Check
Does the engine crank?
YES
Good compression?
YES
Does the tank contain
fresh fuel of the proper
grade?
YES
Is fuel visible and
moving in the return
line when priming?
YES
Is there spark at
the spark plug wire
terminal?
YES
Check the spark plug.
ENGINE DOES NOT START
Possible Cause
Faulty recoil starter.
NO
Fluid in the crankcase.
Internal damage.
Loose spark plug.
NO
Excess wear on cylinder,
piston, rings.
Valves not seating.
Fuel incorrect, stale, or
NO
contaminated; mixture
incorrect.
Check for clogged fuel filter
NO
and/or vent.
Priming pump not
functioning properly.
The ignition switch is in
NO
"O" (OFF) position.
Shorted ignition ground.
Faulty ignition unit.
If the plug is wet, excess fuel
NO
may be in the cylinder.
The plug is fouled or
improperly gapped.
The plug is damaged
internally or of the wrong size.
Remedy
Consult with an authorized servicing dealer.
Tighten and re-test.
Consult with an authorized servicing dealer.
Refill with fresh, clean unleaded gasoline
with a pump octane of 87 or higher mixed
with a 2-cycle air cooled mixing oil that meets
or exceeds ISO-L-EGD and/or JASCO FC
classified oils at 50:1 gasoline/oil ratio.
Clean as required; restart.
Consult with an authorized servicing dealer.
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 re-start.
Clean and regap the plug to
0.6 - 0.7mm. Restart.
Replace the plug with an NGK CMR5H or
equivalent resistor type spark plug of the
correct heat range. Set the spark plug electrode
gap to 0.6 - 0.7mm.
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