Polini208 Jetting?


I put the Poloni208cc kit(Iron), MMW head, racing crankshaft(Mazzucchelli), port fitted to barrel, SI24 carb,

ignition timing 19degree, 2mm hole above the MJ at air cleaner, and SIP road twin pipe.

What size the jet should I start?

If someone did same tuning, please tell me your jetting.


Hi, Richard


Thank you for advice. 

I will try it.

Hello start with

idle 50/120



main 128