Baseline Jetting for a 420cc ?

#1
Honestly i just dont want to blow it up when i start it to break the new cam in. And its a new carb also. I have tuned carbs before just not in this setting................

Russell's cam card at NR says 2000rpms for 20min.

420cc clone with cam, longer arc rod to bump compression a little bit, 32mm carb and header. NO headwork yet. Didnt have time to or else i would have. There is a pitbike style grudge race september 17th so after that i will get the head done.


I have a 38 pilot jet and the main jet wasnt marked but it came out to a #54 drill bit size. I hope this helps.


And thanks any help would be great.
 
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