Refitting The Driving Pulley - Derbi GP1 125-250 c.c. Workshop Manual

Sliding shim cylinder: Standard Diameter
Ø 25,959 - 25,98 mm
Sliding shim cylinder: Min. Allowed diameter
Ø 25,95 mm
Roller (125cc): Standard diameter
Ø 18,9 - 19,1 mm
Roller: Standard Diameter
Ø 20,5-20,7mm
Roller (125cc): Minimum diameter
Ø 18,5 mm
Roller: Min. Allowed diameter
Ø 20 mm
R R
EFITTING THE DRIVING PULLEY EFITTING THE DRIVING PULLEY
- Mount the steel shim in contact with the shim cylinder and
the fixed driving half pulley.
- Install the specific tool as described in the disassembly stage.
- Tighten the nut with washer to the prescribed torque.
Specific tooling
020626Y driving pulley stop key
Locking torques (N*m)
Driving pulley screw 75 ÷ 83
Version 125
- Properly reinstall the bendix into its seat, if removed.
- Reinstall the group components (inside shim, fixed half-pu-
lley, outside shim, drive and nut), apply thread-holding Locti-
te type "Super Rapido" 243 on the threading and tighten the
nut at the prescribed torque.
- Prevent the half-pulley rotation using the specific lock wrench.
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