Husqvarna ST 427 Operator's Manual page 25

Problem
Decreased power
The engine idles or runs
roughly
Excessive vibration /
Handle movement
The starter rope handle
is hard to pull
876 - 014 - 19.05.2021
Possible cause
The spark plug cable is not connected.
The product throws too much snow.
The fuel tank cap is covered with ice or
snow.
The muffler is dirty or clogged.
Improper cable length.
The muffler is blocked.
The air intake of the carburetor is blocked.
The fuel injector does not trigger.
The fuel line is blocked.
There is water in the fuel or the fuel is too
old.
The fuel injector does not trigger.
Some parts are loose. The augers are dam-
aged.
The handles are not positioned correctly.
The adjustment lever nuts are loose.
The starter rope handle is frozen.
The starter rope is interfering with compo-
nents.
Solution
Connect the cable to the spark
plug.
Decrease the speed and the width
of the swath.
Remove the ice and the snow on
and around the fuel tank cap.
Clean or replace the muffler.
Adjust the cable.
Make sure that the engine is cool.
Clear the blockage.
Make sure that the engine is cool.
Clear the blockage.
Contact an authorized service cen-
ter.
Clean the fuel line.
Empty the fuel tank and carburet-
or. Fill the fuel tank with fresh,
clean gasoline.
Contact an authorized service cen-
ter.
Tighten all fasteners. Replace the
damaged parts. If vibration re-
mains, contact an authorized serv-
ice center.
Make sure that the handles are
locked into position.
Tighten the nuts until the handle
feels safe.
Slowly pull out as much rope out of
the starter as possible and release
the starter rope handle. If the en-
gine does not start, repeat the pro-
cedure or use the electrical starter.
The starter rope should not touch
any cables or hoses.
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