Troubleshooting - Husqvarna 445 II Operator's Manual

To clean the cooling system
The cooling system keeps the engine temperature
down. The cooling system includes the air intake on the
starter and the air guide plate, the pawls on the flywheel,
the cooling fins on the cylinder, the cooling channel and
the cylinder cover.
1. Clean the cooling system with a brush weekly or
more frequently if it is necessary.
The engine does not start
Product part to examine
Starter pawls
Fuel tank
Ignition, no spark
Spark plug and cylinder
36
2. Make sure that the cooling system is not dirty or

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.
The spark plug is loose.
Engine is flooded because of repea-
ted starts with full choke after igni-
tion.
blocked.
CAUTION: A dirty or blocked 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.
Technical data on page 37
Refer to
for the correct electrode gap.
Tighten the spark plug.
Remove and clean the spark plug.
Put the product on its side with the
spark plug hole away from you. Pull
the starter rope handle 6-8 times. As-
semble the spark plug and start the
product. Refer to
on page 26 .
To start the product
1286 - 002 - 03.06.2020