Fuel/air mixture screw -BGM PRO, Conversion, short- SI20/20D, SI24/24E, SI24/24H - thread M5 x 0.50mm - thin pin (Ø=0.65mm) -

type Vespa PX with slotted screw (used as conversion fine thread long/hexagon to fine thread short slotted screw) 

Mixture adjustment screw BGM PRO for converting Dell'Orto SI carburettors with long hexagon mixture adjustment screw to short slotted screw

The BGM PRO Conversion mixture adjustment screw is used to use carburettors with a long hexagon mixture adjustment screw in older engines 
(with stud bolts to fasten the carburettor). 

It replaces the (too) long adjusting screw and enables the carburettor to be dismantled and assembled without any problems. 
Thanks to the shorter screw, the carburetor pan can also be left in its original state.

Suitable for all carburetors with a long hexagonal mixture adjustment screw.
Used ex works in the PX models from approx. 1989 and all new Dell'Orto / Spaco SI carburettors.

CONCLUSION: Indispensable for a clean solution to an old problem!