PIAGGIO B 250 - Page 112

Standard diameter: Ø 40.985 mm
Wear limit
0.3 mm
Inspecting the driven sliding half-pulley
125 - 200 version
- Remove the two internal grommets and the two
O-rings.
- Measure the movable half-pulley bushing inside
diameter.
Characteristic
Movable driven half-pulley max. diameter
Max. diameter admitted: Ø 41.08 mm
Movable driven half-pulley standard diameter
Standard diameter: Ø 41.000 ÷ 41.035 mm
- Remove the two internal grommets and the two
O-rings.
- Measure the movable half-pulley bushing inside
diameter.
- Check the contact surface with the belt to make
sure there are no flaws.
- Check the riveted joints are functional.
- Check the evenness of the belt faying surface.
Engine B 125-250
ENG - 112