[honda250ryder]

I put a 270 big bore kit made my cylinder works in my 07 crf 250r and I don't know what jets to put in the carb bike won't start with the kick starter But if I bump start the bike it runs great it just won't start cold

[crfsonly]

welcome to CRF's Only. typically you can go one larger on each and be good depending on where the jetting was originally. if the bike set with fuel in the carb for long your pilot jet may be clogged.