Cause:
Action:
Incorrect oil mixture in the fuel.
Change to a fuel with the correct oil mixture.
Too low octane fuel.
Change to a higher octane fuel.
Air leaks.
Replace damaged parts.
Cracked fuel hose.
Leaking inlet gaskets.
Cracked distance piece or inlet manifold.
Air leakage in engine body.
Replace leaking gaskets and shaft seals.
Leaking crankshaft seals.
Leaking cylinder and crankcase gaskets.
Poor maintenance.
Clean the cooling fins and air intake.
Dirty cooling fins on the cylinder.
Blocked air intake on the starter.
Blocked spark arrestor mesh in the muffler.
Clean or replace the spark arrestor mesh.
The piston ring starts to stick or is completely stuck in its
groove and has therefore not been able to seal against
the cylinder wall, which has resulted in further, intensive
temperature increases in the piston
Seizure scores along the entire piston skirt on the inlet
and exhaust sides.
For the best results we recommend Husqvarna two-
stroke oil or ready-mixed fuel that is specially developed
for air-cooled two-stroke engines.
Mixing ratio: 1:50 (2%).
Medium to deep scores along the entire piston skirt on
the exhaust side.
Cylinder and piston
62 – English
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