Troubleshooting - Husqvarna 525BX Operator's Manual

2. Remove the air filter cover (A).
D
The engine is not possible to start
Check Possible cause
Stop button. Stop position
Starter pawl/s. Blocked or
worn starter
pawl/s.
Fuel tank. Incorrect fuel
type.
Carburetor. Adjustment of
the idle speed.
Spark (no Spark plug dirty
spark). or wet.
Electrode gap
on the spark
plug is incor-
rect.
Spark plug is
loose.
There is un-
Spark plug.
wanted materi-
al on the spark
plug electro-
des.
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C
B
A

Troubleshooting

Solution
Set the stop switch to the start position.
Adjust or replace the starter pawl/s.
Clean around the starter pawl/s.
Speak to an approved servicing dealer.
Drain the fuel tank and use correct fuel.
Adjust the idle speed with the idle adjustment screw.
Make sure that the spark plug is dry and clean.
Clean the spark plug. Make sure that the electrode gap is correct. Make sure
that the spark plug is installed with a suppressor.
Refer to technical data for the correct electrode gap.
Tighten the spark plug.
Make sure that the fuel mixture is correct.
Make sure that the air filter is clean.
3. Remove the air filter (B) from the filter frame.
4. Clean the air filter (B) with warm water and soap.
Note:
An air filter that has been used for a long
time cannot be fully cleaned. Replace the air filter
regularly and always replace a defective air filter.
5. Clean the inner surface of the air filter cover (A) with
a brush.
6. Remove and replace the felt filter (C) if it is dirty.
7. Install the screen (D), the felt filter (C) and the air
filter (B).
8. Install the air filter cover (A) to the product.
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