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Troubleshooting Guide
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.
The plug is damaged internally or of the
wrong size.
What To Check Possible Cause Remedy
ENGINE DOES NOT START
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 filter and/or
vent.
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.
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 50:1 Shindaiwa Premium 2-cycle mixing
oil or with an equivalent high quality 2-cycle
mixing oil.
Replace fuel filter or vent as required.
Restart.
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 restart.
Clean and regap the plug to .024” /
0.6mm-
0.7mm
. Restart.
Replace the spark plug. Check the
“Specifications” section for the correct plug
for your unit. Restart.