Keihein FCR37mm?

[MK300racer7]

i was wondering if their would be any problems with installing a FCR37mm carb on my 300ex thanks?

[Florida400EX]

It might be a little too big, which would probaly kill your bottom end. Don't know much about the 300ex, but I know too big a carb WILL kill your bottom end power.

[MK300racer7]

i run a hmf pipe open air box ngk irudium spark plug and a k&n filter and in most of my mags it says a 38mm is good for mojave warrior 250x 300ex but it istn a flat side or have a acceleration pump. im going to race mx.

[TORO1968]

Hmm... I think the 37mm might be a bit large for a 300.

Have you thought about running a stock 400ex carb? That might work pretty well...what do you guys think?

-Jordan