im going from a modified tecate 4 to a 300ex so i want alittle more power. i wwant to know if the 400 carb fits right into place of the 300? or will it take some midifications? also if i do this will there be a biug difference? thanks for any help

 

i don't think it would fitText

 

anyone else?

 

It will fit no problem. Also if you want more horsepower get an air boot off of a 350X. It's larger then the stock EX one and it gives you a little more power. A headpipe does wonders for the EX engine also.

 

thanks for the help

 

I just picked one up for my 300. The only problem i see so far is the 300's air boot wouldn't fit over the carb. I fixed this by heating the boot and making it fit! As soon as I get it jetted, I'll let you know how she runs.

Zac, 2000 300EX, Fmf, K&N, 400EX carb(soon to be dialed in), AC Bumper nerfs and skids, Honda radials at all four corners.

 

thanks, and please ley me know how it turns out.

 

If you are paying for the carb, it just isn't worth it. A buddy of mine gave me the carb, and with a 148 main jet, I might have gotten a 1/2 a bike length more, if that. I'll have my motor ported and polished and I plan on gettin a cam here shortly, so the carb may work a little better then.

Zak