Husqvarna 531RB Workshop Manual page 39

10. Assemble the remaining parts of the cylinder and
piston in the opposite sequence to how they were
disassembled. Refer to
and piston on page 35 .
7.9.6 To do a leak test of the cylinder
1. Turn the engine around its axle to get access to the
air filter.
2. Turn the knob (A) to remove the air filter cover.
Remove the air filter. Remove the screws (D) and
remove the plate (C) and the air filter holder (E).
B C
A
935 - 001 -
To disassemble the cylinder
E
D
3. Loosen, but do not remove, the 2 screws that hold
the carburetor. Put a rubber sheet between the
carburetor and the distance piece. Tighten the 2
screws.
4. Remove the muffler cover. Loosen the 2 screws that
hold the muffler. Put a rubber sheet between the
muffler and the cylinder, start from the bottom, as
the illustration shows. Tighten the 2 screws.
5. Remove the spark plug and attach a pressure test
Servicing tools on page 10 .
plug. Refer to
Repair instructions- 39