Sprint 150

Hey guys,

My first Vespa project is a 69' Sprint, which i am mounting a SI 24.24 carburetor, 178 ccm cylinder  and making 3 ports in the crankshaft housing.

The question is what sice nuzzle to mount in the carburetor?   

 

Best regards

Kent Pedersen

What kind of cylinder ? DR / Polini/ Pinasco/Parmakit .... ?