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Troubleshooting Guide (continued)
Symptom
Poor acceleration.
Engine stops abruptly.
Engine difficult to shut off.
Top of engine is getting
dirty and oily.
Engine will not idle
down.
Cutting attachment
moves at engine idle.
Excessive vibration.
Cutting attachment will not
move.
24
ADDITIONAL PROBLEMS
Possible Cause
Clogged air filter.
Clogged fuel filter.
Lean fuel/air mixture.
Idle speed set too low.
Ignition switch turned off.
Fuel tank empty.
Water in the fuel.
Clogged fuel filter.
Shorted spark plug or loose terminal.
Ignition failure.
Piston seizure.
Ground (stop) wire is disconnected,
or switch is defective.
Overheating due to incorrect spark plug.
Overheated engine.
Valve cover is leaking.
Idle set too high.
Engine has an air leak.
Engine idle too high.
Broken clutch spring or worn clutch
spring boss.
Loose attachment holder.
Warped or damaged attachment.
Loose gearcase.
Bent main shaft/worn or damaged bushings.
Shaft not installed in powerhead or gearcase.
Broken shaft.
Damaged gearcase.
Remedy
Clean the air filter.
Replace the fuel filter.
Consult with an authorized Shindaiwa
servicing dealer.
Adjust idle. Check Specifications page for correct idle speed.
Reset the switch and re-start.
Refill with fresh, clean unleaded gasoline with a pump octane
of 89 or higher mixed with an air cooled engine oil that
meets or exceeds ISO-L-EGD and/or JASO FD classified oils
at 50:1 gasoline/oil ratio.
Replace fuel filter.
Clean or replace spark plug. Check the Specifications section
for the correct plug and gap for your unit. Tighten
the terminal.
Replace the ignition unit.
Consult with an authorized Shindaiwa
servicing dealer.
Test and replace as required.
Replace the spark plug. Check the Specifications section for
the correct plug and gap for your unit. Restart.
Idle engine until cool.
Consult with an authorized Shindaiwa
servicing dealer.
Adjust idle. Check Specifications page for correct
idle speed.
Consult with an authorized Shindaiwa servicing
dealer.
Adjust idle. Check Specifications page for correct idle
speed.
Replace spring/shoes as required, check idle speed.
Inspect and re-tighten holders securely.
Inspect and replace attachment as
required.
Tighten gearcase securely.
Inspect and replace as necessary.
Inspect and reinstall as required.
Consult with an authorized Shindaiwa servicing
dealer.
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