Husqvarna 120 Manual De Usuario página 25

5. Examine if the guide bar tip is rough or very worn.
(Fig. 128)
6. Make sure that the bar tip sprocket turns freely and
that the lubricating hole in the bar tip sprocket is not
blocked. Clean and lubricate if it is necessary. (Fig.
129)
7. Turn the guide bar daily to extend its life cycle. (Fig.
130)
To do maintenance on the fuel tank
and the chain oil tank
• Drain and clean the fuel tank and the chain oil tank
regularly.
• Replace the fuel filter yearly or more frequently if
necessary.
CAUTION:
causes malfunction.
The engine does not start
Product part to examine
Starter pawls
Fuel tank
Ignition, no spark
930 - 007 - 06.03.2023
Contamination in the tanks
Troubleshooting
Possible cause
The starter pawls are blocked.
Incorrect fuel type.
The fuel tank is filled with chain oil.
The spark plug is dirty or wet.
The electrode gap is incorrect.
To clean the cooling system
The cooling system keeps the engine temperature
down. The cooling system includes the air intake on
the starter (A), the air guide plate (B), the pawls on the
flywheel (C), the cooling fins on the cylinder (D), and the
cylinder cover (E).
(Fig. 131)
1. Clean the cooling system with a brush weekly or
more frequently if it is necessary.
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION:
cooling system can make the product
too hot, which can cause damage to the
product.
Action
Adjust or replace the starter pawls.
Clean around the pawls.
Speak to an approved service work-
shop.
Drain the fuel tank and fill with cor-
rect fuel.
If you have tried to start the product,
speak to your servicing dealer. If you
have not tried to start the product,
drain the fuel tank.
Make sure that the spark plug is dry
and clean.
Clean the spark plug. Make sure that
the electrode gap and spark plug is
correct, and that the correct spark
plug type is the recommended or
equivalent.
Refer to
for the correct electrode gap.
A dirty or blocked
Technical data on page 27
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