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Can I switch to a mikuni 2003 rm 250

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 I have an 03 rm250 with a keihin carb and was wondering if i could run a mikuni instead. In my opinion the mikuni is way more simplistic and easy to tune any thoughts or has anyone done this before?

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Interested in this. I bought another keihin for my 03 off ebay because my original needle seat wore out. What is your jetting specs. Need the #7 slide.

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While the Mikuni might be simple the Keihin is generally thought of as being a better carb ~ performance wise.  If your trying to improve the jetting, a real easy way to get into the ballpark and maybe even nail the jetting is to buy a JD jet kit.  Considering your time and the amount of fussing it'll take to iron out a different carb, the extra dollars spent on the kit will go along way in keeping you sane.

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