Estrol there is no safe jetting whats good one one bike at one track at so and such temp etc will seize another bike you can go over the top but then you lose a bit of power last season was a big learning curve for me the cost 2 cylinders but i have now bone 8 races without a prob er till the crank went.
Start rich and see what happens ifb you are rich get a couple of egt sensors.AIM do a nice set up.