Shindaiwa X7502825900 Owner's/Operator's Manual page 24

Troubleshooting Guide (continued)
Symptom
Poor acceleration.
Engine stops abruptly.
Engine diffi cult 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 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.
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 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.
Consult with an authorized Shindaiwa
servicing dealer.
Adjust idle. Check Specifi cations page for correct
idle speed.
Consult with an authorized Shindaiwa servicing
dealer.
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.
Inspect and replace as necessary.
Inspect and reinstall as required.
Consult with an authorized Shindaiwa servicing
dealer.