Diaphragm and 22mm Slide for some Walbro  carburetors for SOME early Vespa GT200, Piaggio BV200, Piaggio and Aprilia Walbro Carburetor. The diameter of this slide is 22mm. The other assembly, CM129701, has a 28mm diameter slide.

Please verify that the carburetor in your scooter uses this 22mm round slide before you order  CM140501 1R000020

Fits Walbro Carburetor for Vespa GT20  with 22mm slide.

For Carburetor marked Walbro only.