Husqvarna SM 50 / 2011, Workshop Manual

Page: 73 / 150

F.7
Ed. 01-09-2010
ENGINE
Stator removal
- Slide cable guide (1) out of crankcase.
- Remove TCEI (2) screws from stator (3).
- Take stator (3) out of crankcase with the utmost care.
Cylinder head, cylinder and piston removal
- Working crossways, undo cylinder head screws, then remove them.
- Dispose of screw washers, and remove cylinder head (4).
- Remove and dispose of cylinder O-rings (6).
- Working crossways, loosen the 4 screws (7) at cylinder bottom, and slide
cylinder out from top working with extreme care.
- Position piston on the self-manufactured wooden support.
- Using a suitable tool, remove piston pin snap ring (8).
- Separate piston pin from piston by hand, remove piston, and manually
remove needle roller bearing from connecting rod.
- Remove cylinder bottom gasket.
Rotor disassembly
- Lock rotor (1) with special tool (2) to prevent it from moving, open and
remove nut.
A shim, positioned under nut, is left onto rotor due to magnetic pull.
The two pins of special tool shall not engage inside threaded holes as
they could damage thread, and prevent rotor removal.
- Remove circlip (3) from chain sprocket, then remove sprocket.