Shindaiwa 68242-94311 User Manual

17

Troubleshooting Guide

Operator is overworking the unit.

Carburetor mixture is too lean.

Improper fuel ratio.

Fan, fan cover, cylinder fins dirty or 

damaged

Carbon deposits on the piston or in the 

muffler.

Clogged air cleaner element.

Loose or damaged spark plug.

Air leakage or clogged fuel line.

Operate at slower rate.

Consult with an authorized servicing 

dealer.

Refill with clean fresh unleaded 

gasoline with a pump octane of 87 or 

higher, mixed with Premium 2-cycle 

mixing oil at a 50:1 gasoline/oil ratio.

Clean, repair or replace as necessary.

Consult with an authorized servicing dealer

Clean or replace the air filter

Tighten or replace the spark 

plug.  Restart. Check the Product 

Specifications page in this manual for 

the correct spark plug for this unit.

Repair or replace fuel filter and/or fuel 

line. 

Water in the fuel.

Piston seizure.

Faulty carburetor and/or diaphragm

Overheating condition.

Improper fuel.

Carbon deposits in the combustion 

chamber.

Check fuel octane rating; check for 

presence of alcohol in the fuel. Refuel 

as necessary. 

Consult with an authorized servicing 

dealer. 

Refill with fresh fuel/oil mixture.

Consult with an authorized servicing 

dealer.

Consult with an authorized servicing 

dealer.

LOW POWER OUTPUT

What To Check

Possible Cause

Remedy

Fallen leaves or debris on intake cover..

Clean intake cover..

Heat sensor is activated, due to 

restricted air flow at intake cover.

Stop the engine. Clean debris blocking 

intake cover. Restart. Idle more than 1 

minute. If engine speed is reduced again, 

consult with an authorized servicing 

dealer.