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Troubleshooting guide (continued) – Shindaiwa 81601 User Manual

Page 17

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17

Is the engine overheating?

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.

Shorten trimmer line. Cut at a slower rate.

Consult with an authorized servicing dealer.

Refill with clean fresh unleaded gasoline with a

pump octane of 87 or higher, mixed with

Shindaiwa Premium 2-cycle mixing oil at a

50:1 gasoline/oil ratio.

Consult with an authorized servicing dealer.

Consult with an authorized servicing dealer.

Engine is rough at all speeds.

May also have black smoke

and/or unburned fuel at the

exhaust.

Clogged air filter.

Loose or damaged spark plug.

Air leakage or clogged fuel line.

Water in the fuel.

Piston seizure.

Faulty carburetor and/or diaphragm.

Clean or replace the air filter.

Tighten or replace the plug with a Champion

CJ8 or equivalent type spark plug of the correct

heat range.

Repair or replace filter and/or fuel line.

Refill with fresh fuel/oil mixture. See Page 9.

Consult with an authorized servicing dealer.

Engine is knocking.

Overheating condition.

Improper fuel.

Carbon deposits in the combustion

chamber.

See above.

Check fuel octane rating; check for presence of

alcohol in the fuel. Refuel as necessary.

See page 9.

Consult with an authorized servicing dealer.

What To Check

Possible Cause

Remedy

Troubleshooting Guide (continued)

LOW POWER OUTPUT

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