25
Maintenance and care
Troubleshooting table
The engine does not start
Diagnosis
Cause
Solution
Does the engine crank?
NO
Faulty recoil starter.
Fluid in the crankcase.
Internal damage.
Consult your shindaiwa dealer.
YES
Good compression?
NO
Loose spark plug.
Tighten and re-test.
Excess wear on cylinder, pis-
ton, rings.
Consult your shindaiwa dealer.
YES
Does the tank contain fresh fuel of the
proper grade?
NO
Fuel incorrect, stale, or con-
taminated; mixture incorrect.
Refill with fresh, clean unleaded
gasoline with a pump octane of 89
or higher mixed with a 2-cycle air
cooled mixing oil that meets or ex-
ceeds ISO-L-EGD and/or JASO
FC, FD classified oils at 50:1 gaso-
line/oil ratio.
YES
Is fuel visible and moving in the return
line when priming?
NO
Check for clogged fuel filter
and/or vent.
Replace fuel filter or vent as re-
quired. Restart.
Priming pump not functioning
properly.
Consult your shindaiwa dealer.
YES
Is there spark at the spark plug wire ter-
minal?
NO
The ignition switch is in "O"
(STOP) position.
Move to "I" (START) position and
restart.
Shorted ignition ground.
Faulty ignition unit.
Consult your shindaiwa dealer.
YES
Check the spark plug.
If the plug is wet, excess fuel
may be in the cylinder.
Crank the engine with the plug re-
moved, reinstall the plug, and re-
start.
The plug is fouled or improper-
ly gapped.
Clean and regap the plug to 0.6
mm. Restart.
The plug is damaged internally
or of the wrong size.
Replace the plug with an NGK
CMR5H or equivalent resistor type
spark plug of the correct range.
Set spark plug electrode gap to 0.6
mm.
