25
ADDITIONAL PROBLEMS
Poor acceleration.
Clogged air fi lter.
Clogged fuel fi lter.
Lean fuel/air mixture.
Idle speed set too low.
Ignition switch turned off.
Fuel tank empty.
Water in the fuel.
Clogged fuel fi lter.
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.
Clean the air fi lter.
Replace the fuel fi lter.
Consult with an authorized Shindaiwa
servicing dealer.
Adjust idle. Check
Specifi cations
page for correct idle speed.
Reset the switch and re-start.
Refi ll 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 classifi ed oils
at 50:1 gasoline/oil ratio.
Replace fuel fi lter.
Clean or replace spark plug. Check the
Specifi cations
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 Specifi cations section for
the correct plug and gap for your unit. Restart.
Idle engine until cool.
Symptom
Possible Cause
Remedy
Engine stops abruptly.
Engine diffi cult to shut off.
Troubleshooting Guide
(continued)
Valve cover is leaking.
Consult with an authorized Shindaiwa
servicing dealer.
Top of engine is getting
dirty and oily.
Engine idle too high.
Broken clutch spring or worn clutch
spring boss.
Loose attachment holder.
Warped or damaged attachment.
Loose gearcase.
Cutting attachment
moves at engine idle.
Excessive vibration.
Cutting attachment will not
move.
Adjust idle. Check Specifi cations 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.
Bent main shaft/worn or damaged bushings.
Shaft not installed in powerhead or gearcase.
Broken shaft.
Damaged gearcase.
Inspect and replace as necessary.
Inspect and reinstall as required.
Idle set too high.
Adjust idle. Check Specifi cations page for correct
idle speed.
Engine will not idle
down.
Engine has an air leak.
Consult with an authorized Shindaiwa servicing
dealer.
Consult with an authorized Shindaiwa servicing
dealer.
