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Troubleshooting guide (continued), Symptom possible cause remedy – Shindaiwa 62891-94311 User Manual

Page 20

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20

Additional Problems

Poor acceleration.

Idle speed set too low.

Consult with an authorized servicing dealer.

Symptom

Possible Cause

Remedy

Engine stops abruptly.

Engine difficult to shut

off.

Excessive vibration.

Chain rotates at idle

speed.

Broken clutch spring or worn clutch spring boss

Warped or damaged sprocket, chain, or bar.

Bent crankshaft.

Clean or replace the air filter.

Replace the fuel filter.

Inspect and/or test brake. Consult with an

authorized servicing dealer.
Consult with an authorized servicing dealer.

Adjust: 2,750(±250) min

-1

.

Reset the switch and restart.

Refuel. See section on “Filling the Tank with Fuel”.

Replace fuel filter.

Drain; replace with clean fuel. See section on

“Filling the Tank with Fuel”.
Clean or replace spark plug. See “Specifications” for

the correct plug for your unit. Tighten the terminal.
Replace the ignition unit.

Consult with an authorized servicing dealer.

Test and replace as required.

Replace spark plug. See “Specifications”

for the correct plug for your unit.
Idle engine until cool.

Replace spring/shoes as required, check idle

speed. Set idle: 2,750(±250) min

-1

Inspect and replace chain components as required.

Engine idle too high.

Overheated engine

Overheating due to incorrect spark plug.

Ground (stop) wire is disconnected, or switch

is defective.

Piston seizure.

Clogged air filter.

Switch turned off.

Fuel tank empty.

Clogged fuel filter.

Water in the fuel.

Shorted spark plug or loose terminal.

Ignition failure.

Clogged fuel filter.

Chain brake engaged.

Lean fuel/air mixture.

Troubleshooting Guide (continued)