Hello vintage fans, let me ask your advice -
I am slowly putting together a 1973 Vespa Rally project. The motor has been rebuilt with a Pinasco kit and a long stroke Mazzuchelli crankshaft. The bike has autolube. I have the original 24mm Dell'Orto carb, but I also bought a 26mm Spaco. Either of them should work with the autolube system.
I'm sure that with a big enough main jet the original 24mm carb would work okay, but given that the displacement will be around 225cc, should I perhaps try the bigger Spaco? Some say their quality is not as good...
I know, I should probably have kept it all stock, but what's done is done. I still have the original barrel and piston if I want to revert it to factory spec.
Any thoughts? And/or jetting suggestions?