I have a 1949 Aprilia berlina which is fitted with an Italian Zenith ZM2 carburettor. I believe that this carb was the factory-fitted unit from new. I'm looking for tuning information for this particular carb. I've searched the internet extensively and I cannot find any information other than this carb model was used on the Lancia Aprilia and maybe on the Fiat Balilla. I'd be pleased to get a copy of a parts manual, or even better a Zenith tuning guide for this carb. Anybody got what I'm looking for, and willing to part with it?
Regards,
John Larkin.
