Troubleshooting - Husqvarna 143R-II Operator's Manual

• Sharpen one tooth of the saw blade to the right and
the next tooth to the left, see the illustration.
Note: Sharpen the edges of the teeth with a flat file if
the blade is heavily worn. Continue to sharpen with a
round file.
• Sharpen all edges equally to keep the blade
balanced.

Troubleshooting

Starting failure
Check Possible cause
Stop button Stop position
Starter pawls Binding pawls
Fuel tank Incorrect fuel
type.
Carburetor Adjustment of
the idle speed.
Spark (no Spark plug dirty
spark) or wet.
Spark plug
clearance in-
correct.
Spark plug Spark plug
loose.
Fuel filter Clogged fuel fil-
ter.
1334 - 002 - 14.01.2020
15˚
Troubleshooting
Solution
Set the stop switch to the start position.
Adjust or replace the pawls.
Clean around the pawls.
Speak to an approved servicing dealer.
Drain it and use correct fuel.
Adjust the idle speed with the T screw.
Make sure that the spark plug is dry and clean.
Clean the spark plug. Check that the electrode gap is correct. Make sure that the
spark plug is installed with a supressor.
Refer to technical data for correct electrode gap.
Tighten the spark plug.
Replace the fuel filter.
• Adjust the blade set to 1 mm (0.04 in) with the
recommended setting tool. Refer to the instructions
that come with the blade.
WARNING: Always discard a blade that is
damaged. Do not try to make a bent or
twisted blade straight and use it again.
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