Derbi Rambla 250 Manual page 89

Engine
Specific tooling
AP8140664 Guide to mount the movable driven pulley
Inspecting the clutch spring
- Measure the length of the movable driven half-
pulley spring, when unloaded.
Characteristic
Standard length
123 mm
limit after use
118 mm
Refitting the clutch
- Assemble the spring, clutch and driven pulley.
- Fit the clutch body on the appropriate tool with the adaptor
- Insert the lever pin in the hole of the adaptor ring.
- Tighten the fixing nut to the prescribed torque.
NOTE
WHEN PRELOADING THE SPRING, BE CAREFUL NOT TO DAMAGE THE PLASTIC STOP OF
THE SPRING AND THE BUSHING THREADING.
NOTE
FOR DESIGN REASONS, THE NUT IS SLIGHTLY ASYMMETRIC; THE FLATTEST SURFACE
SHOULD BE MOUNTED CONTACTING THE CLUTCH.
Specific tooling
AP8140259 Universal tool for clutch assemblies
AP8140665 Adapter for clutch assembly removal
AP8140300 55 mm wrench
Locking torques (N*m)
Clutch assembly nut on driven pulley 45÷50 (33.2÷36.9 ftlb)
ENG - 89