Troubleshooting Guide (continued)

ADDITIONAL PROBLEMS

What To Check

Poor acceleration.

Possible Cause

Clogged air filter.

Clogged fuel filter.

Lean fuel/air mixture.

Idle speed set too low.

Remedy

Clean or replace the air filter.

Replace the fuel filter.

Consult with an authorized servicing dealer.

Adjust:3,000 (±300) min-1.

Engine stops abruptly.

Switch turned off.

Fuel tank empty.

Clogged fuel filter.

Water in the fuel.

Shorted spark plug or loose terminal.

Ignition failure.

Piston seizure.

Reset the switch and re-start.

Refuel. See Fuel section of manual.

Replace fuel filter.

Drain; replace with clean fuel. See Fuel section of manual..

Clean or replace spark plug. Check the Specifications page in this manual for the proper spark plug for your unit. Tighten the terminal.

Replace the ignition unit.

Consult with an authorized servicing dealer

Engine difficult to shut off.

Ground (stop) wire is disconnected or switch is

 

Test and replace as required.

 

defective

 

 

 

 

Overheating due to incorrect spark plug

 

Replace the spark plug. Check the

 

 

 

Specifications page in this manual for the

 

 

proper spark plug for your unit.

Overheated engine.

 

Idle engine until cool.

 

Cutting attachment moves at engine idle.

Engine idle too high.

Broken clutch spring or worn clutch spring boss.

Loose attachment holder.

Adjust idle 3,000 (±300) min1.

Replace spring/shoes as required.

Inspect and re-tighten holders securely.

Excessive vibration.

Warped or damaged attachment.

Loose gearcase.

Bent main shaft/worn or damaged bushings.

Inspect and replace attachment as required.

Tighten gearcase securely. Inspect and replace as necessary.

Attachment will not rotate.

Shaft not installed in powerhead or gearcase.

Broken shaft.

Damaged gearcase.

Inspect and reinstall as required.

Consult with a authorized servicing dealer.

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Shindaiwa T272/EVC, T272X/EVC, 81606 manual What To Check, Engine stops abruptly