CLUTCH SYSTEM
CS-501SX, CS-501SXH
501sx
37
A
B
F
G
H
C
D
E
J
5-1 Inspecting clutch parts
1. Remove sprocket guard (A), cleaner lid (B) and
air fi lter.
NOTE:
If starter assembly is installed, pull starter
rope out about 20 cm (8 in), and make a temporary
knot (C) to prevent starter damage when installing
clutch assembly.
2. Disconnect spark plug cap and remove spark
plug.
3. Install clean rope (H) or piston stopper X644-
000020 in spark plug hole to stop crankshaft
rotation.
4. Rotate clutch assembly clockwise by hand until
it cannot be rotated further.
5. Remove nut (D), circular washer (E) and sprock-
et (F).
6. Remove clutch drum (G) with needle bearing in-
side.
7. Loosen clutch assembly (Left-hand thread) ro-
tating clockwise with Clutch tool X640-000370 (J)
and remove it.
8. Remove collar and worm gear.
9. Inspect clutch shoes for wear and spring for
weakness or damage. Replace clutch parts as re-
quired.
10. Inspect clutch drum, sprocket, nut and circular
washer. Replace if deformed or worn out.
11. Inspect needle bearing, collar and worm gear
for damage, discoloration or deformation. Replace
as required.
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