JETTING AGAIN!!

Hi everyone,

Im upgrading my complete engine this weekend after a Crank fail problem.

I’m fitting a racing polished crank, cosa clutch & new p2 simonini exhaust.

Build now;

210 Malossi.
Ported crankcase.
Racing Crank
26/26 carb
Lightened flywheel.
Simonini Exhaust.

I’m currently running a 122 jet (with SITO + & normal crank).

Whats the best way of jetting now? Last time I started with the largest jet I had (130) then just downsized until the engine reved cleanly. is this the best way to go?