04 crf100 W/ big bore carb jetting/tuning help needed?

Ahh I’ve stumbled my way into the mini Honda world haha
Honda crf100 with TB parts 120 kit, stock cam, original keihin pd 22mm carb, fmf pipe, bbr rev box and a k&n filter inside the air box.
Looking for a good starting point with what jets to use? I’m thinking a 105 or 110 main and a 50 pilot jet, & 2&1/2 turns out on the fuel screw? Riding around 650’ elevation. Vp 110 fuel.
Thanks in advanced lol and yes I know the 24mm carb would be better but I haven’t found a local crackhead with one yet for me to lowball. Haha
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Sachmo831
Posts
253
Joined
10/7/2015
Location
South Bend, IN, USA
4/17/2020 9:25am
Last year i put together a xr100 with a 120 big bore, pc pipe, 200x carb, and a cut open airbox. I'm not 100% positive but i believe the jetting i ended up with was 120 main and a 45 pilot. Using the stock 200x needle.
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