300ex jetting question

[hondaquad]

I'm sure this has been asked a thousand times but I have a '99 300ex with a kehin carb, stock main jet is 122. I am running a K&N filter w/ open airbox and an FMF Megamax II pipe and header. What jet should I use for this setup at sea level up to about 750 feet above sea level. Any help is appreciated, thanks.

[YAZ43]

125 to 128 on main and you will be real close.

[fastrider450r]

$55 for a dynojet jet kit and do all it says for ur current setup and your good to go.

[hondaquad]

Thanks for the help, I'm getting the bike ready to go to Durhamtown Plantation for Labor Day weekend. Hope to see some of you there.