TROUBLESHOOTING TABLE

WARNING: Always stop unit and disconnect spark plug before performing all of the recommended remedies below except remedies that require operation of the unit.

 

TROUBLE

CAUSE

REMEDY

 

 

 

 

 

Engine will not

1. Ignition switch off.

1. Move ignition switch to ON.

 

start or will run

2. Engine flooded.

2. See “Difficult Starting” in

 

only a few

 

 

 

Operation Section.

 

seconds after

3. Fuel tank empty.

3. Fill tank with correct fuel mixture.

 

starting.

4. Spark plug not firing.

4. Install new spark plug.

 

 

5. Fuel not reaching

5. Check for dirty fuel filter; replace.

 

 

 

carburetor.

 

Check for kinked or split fuel line;

 

 

 

 

 

repair or replace.

 

 

 

 

 

 

Engine will

1.

Carburetor requires

1. See “Carburetor Adjustment” in the

 

not idle

 

adjustment.

 

Service and Adjustments Section.

 

properly.

2.

Crankshaft seals worn.

2. Contact an authorized service dealer.

 

 

 

 

 

 

 

Engine will not

1.

Air filter dirty.

1.

Clean or replace air filter.

 

accelerate,

2.

Spark plug fouled.

2.

Clean or replace plug and regap.

 

lacks power,

3.

Chain brake engaged.

3.

Disengage chain brake.

 

or dies under

4.

Carburetor requires

4.

Contact an authorized service dealer.

 

a load.

 

adjustment.

 

 

 

 

 

 

 

Engine

1. Too much oil mixed with

1. Empty fuel tank and refill with

 

smokes

 

gasoline.

 

correct fuel mixture.

 

excessively.

 

 

 

 

 

Chain moves

1. Idle speed requires

1. See “Carburetor Adjustment” in the

 

at idle speed.

 

adjustment.

 

Service and Adjustments Section.

 

 

2. Clutch requires repair.

2.

Contact an authorized service dealer.

 

 

 

 

 

 

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Husqvarna 137, 142 Troubleshooting Table Cause Remedy, Load Adjustment Engine, Empty fuel tank and refill with

137, 142 specifications

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