English – 47
Repair instructions
Remove the circlips from the ends of the gudgeon
pin and press it out. Then lift off the piston.
6
If replacing the cylinder:
Unscrew the decompression valve. Remove the
intake system, see “Air intake system – removal”.
Remove the bearing from the little end of the con-
necting rod.
7
8
When replacing the cylinder CS 2141, CS 2145:
Unscrew the decompression valve. (CS 2145)
Remove the intake system, see “Air intake system
– removal”.
Model CS 2150 is fi tted with a spacer, which is
secured using four bolts from the underside. The
spacer does not however need to be removed
when removing the cylinder.
Cleaning and inspection
Clean all the components, scraping off all traces of
old gasket and carbon from the following places:
• Piston crown
• Top of the cylinder bore
• Cylinder exhaust port
• Decompression valve channel (CS 2145,
CS 2149, CS 2150, CS 2152)
• Cylinder base and/or crankcase
Check the following:
• The surface coating of the cylinder is not worn
through, especially in the upper part of the cylin-
der.
• The cylinder is free from score marks and areas
of wear.
• The piston is free from score marks. Small
scratches can be polished out with fi ne emery
paper.
• The piston ring is not burnt into its groove.
4
Cover the opening in the crankcase.
5
To Next Page
Loading...
Need help?
General