Troubleshooting - Husqvarna 543 XP Operator's Manual

the cooling fins on the cylinder, the cooling channel and
the cylinder cover.
The engine does not start
Product part to examine
Starter pawls
Fuel tank
Ignition, no spark
956 - 001 - 13.11.2018
1. Clean the cooling system with a brush weekly or
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.
more frequently if it is necessary.
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.
Refer to
for the correct electrode gap.
Technical data on page 34
33