2002 Honda 400ex - Modifications

[Barrett2011]

I have a 02 400ex with stage two hot cams, port and polished head, 11:1 Wiesco high compression piston, open air box with k&n filter and i run it with 110 race fuel. Jetted to run with all these mods. Is there anything else i could do that would increase the performance of the bike without going big bore? I mostly do trail riding and some track riding and the dunes when i get the chance.

[oxidized_black]

you would be best off talking to CK1999_400ex. send him a message or leave him a comment, he will get back to you ...

[CK1999_400ex]

if you can get to a machine shop and take some of the extra weight off of the flywheel it will lighten the rotating assembly and make it rev faster an increase the power output .. I have built and raced mor 400ex"s that I can count on my fingers an toes .lol.. ill have to go through some of my mod sheets ..an can see if there are any more ..lol.. but the weight removal is a big performance gain..

[Barrett2011]

Sorry been without a computer for quite some time have not had a chance to get on here. So how would i explain to a machinist how much weight to take off without throwing everything out of balance.

[marioweldinginc]

I might have a 500cc 400EX motor for sale ....or trade