Husqvarna 543RBX Workshop Manual page 47

15. Push the piston pin from the piston with a piston pin
rod.
16. Remove the piston. Remove the needle bearing and
the 2 washers.
17. Remove the piston rings, if it is necessary.
1239 - 001 -
7.10.2 To clean the cylinder and piston
CAUTION: Be careful when you clean the piston
and cylinder. The soft aluminum parts are easily
damaged.
• Remove the carbon deposits from these parts:
a) The top of the piston.
b) The combustion chamber of the cylinder.
c) The exhaust port of the cylinder.
• Use a screwdriver to remove dirt particles from the
cooling fins.
• Clean all parts.
• Clean the piston ring groove.
7.10.3 To examine the cylinder
• Make sure that the surface layer of the cylinder is
not worn, especially in the top end of the cylinder.
Repair instructions- 47