I've just about finished my 2001 SR, have fitted a Polini Cast 70cc Kit, and a Leovince ZX exhaust, will also be adding a malossi E5 Airfilter as the rubbers cracked on the original. Its fitted with what appears to be a 17.5mm Mikuni Carb with standard jetting any ideas on what jet I need for my setup, will check to see what I currently have fitted tomorrow. Thanks Dave