Engine Troubleshooting - Husqvarna LB 146 Manual De Usuario

Problem
The engine does not start.
The engine does not stop.
The engine does not operate
smoothly.
The engine becomes too hot.
There is misfire in the engine
when it operates at high
speed.
Unusual noises from the en-
gine during normal load.
The engine does not operate
smoothly at idle speed.
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Engine troubleshooting

Possible cause
The ignition cable is not connected cor-
rectly.
The fuel tank is empty.
The fuel is old.
There is dirt in the carburetor or fuel line. Clean the carburetor and/or fuel line.
The spark plug is defective.
There is fuel on the spark plug.
The stop mechanism is defective.
The ignition cable is not connected cor-
rectly.
There is dirt in the fuel line or the fuel
has expired.
There is blockage in the fuel tank cap.
There is water or dirt in the fuel system.
The air filter is dirty.
The carburetor must be adjusted.
The engine oil level is too low.
The air flow is not sufficient.
The carburetor must be adjusted.
The electrode gap in the spark plug is
too small.
Incorrect type of gasoline.
The spark plug is dirty, defective or the
electrode gap is too wide.
The carburetor must be adjusted.
The air filter is dirty.
Solution
Connect the ignition cable to the spark
plug.
Fill the fuel tank with correct fuel type.
Drain the fuel tank and the carburetor.
Refuel with new gasoline.
Adjust the electrode gap, clean or re-
place the spark plug.
Clean the spark plug.
Disconnect the ignition cable from the
spark plug. Let an approved service
agent repair the product.
Connect the ignition cable to the spark
plug.
Clean the fuel line. Fill the fuel tank with
new fuel of the correct type.
Clean the fuel tank cap.
Drain the fuel tank. Fill the fuel tank with
new fuel of the correct type.
Clean the air filter.
Let a servicing dealer adjust the carbu-
retor.
Fill engine oil.
Clean the air filter and the air filter hous-
ing.
Let a servicing dealer adjust the carbu-
retor.
Adjust the electrode gap.
Drain the fuel tank and the carburetor.
Refuel with new gasoline. Refer to
examine the fuel system on page 14 . If
the problem continues speak to your lo-
cal service dealer.
Adjust the electrode gap or replace the
spark plug.
Adjust the carburetor.
Clean the air filter.
To
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