ENGINE
CS-501SX, CS-501SXH
501sx
57
8-12 Installing piston ring and cylinder
1. Install piston ring on piston, ensuring the end
gaps of piston ring are properly positioned around
locating pin (A) as shown.
2. Temporarily paste new cylinder gasket (B) on
cylinder base with a little glue for easier installation
of cylinder.
NOTE:
Projection (b) of cylinder gasket (B) is to-
wards brake lever side.
3. Apply oil to piston ring and internal wall of cylin-
der.
4. Install cylinder (C) with intake bellows, bellows
holder and intake insulator with over piston, ensur-
ing that the exhaust side of cylinder should face
front as shown.
NOTE:
When installing cylinder, it is convenient to
use Piston holder 897719-02830 (E) to stabilize
piston.
NOTE:
When installing piston in cylinder, do not
twist cylinder to avoid breakage of piston ring and
scoring cylinder bore.
5. Reinstall all removed parts in place.
A
A
E
b
B
C
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