Derbi GP1 125-250 c.c. Workshop Manual page 87

Gp1 125-250 c.c.
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R
EMOVING THE DRIVING PULLEY
O
G
G U
Driving pulley removal (125)
- Using the specific tool, remove the nut with the built-in
spring washer, the drive for the versions with kick-starter,
and the steel washer.
- Remove the fixed driving half-pulley.
- Remove the steel separation washer from the bushing.
Specific equipment and tools:
020368Y driving pulley stop wrench
VERSION 250
- Turn the driving shaft until the pulley slots are with vertical
axis.
- Insert the adaptor shim cylinder of the specific tool into the
seat shown in the photo.
- Insert the tool into the slots and apply the bull ring.
- Bring the ring's fixing screws close while keeping the tool res-
ting on the pulley.
Specific tooling
020626Y driving pulley stop key
86

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Gp1 125 c.c.Gp1 250 c.c.

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