Hey guys I have a question. I have a 06 400KFX. I just installed an HMF slip-on and a KN Powerlid. I thought I could get away without jetting it, but I put everything on last night and realized I will have to rejet. We I take off slow its fine, but I soon as I hit the gas hard it falls completely on it's face. The KN Powerlid came with jets, but does anyone know what size they are? Is is possible they will work with my setup? Thanks guys!

 

My buddie has a 05 kfx400. He is running no lid and a yoshi comp full system. He is running a 160 or 165 main. His mains may be a touch rich for you but would be a good starting point. It's better to start rich and work down to lean. Hope this helps[img]i/expressions/face-icon-small-smile.gif[/img]

 

Thanks FASTFATBOY. You don't happen to know what size jets those are that come with the Powerlid I bought do you? I probally will give those a try and see how it runs.

 

It should be stamped on the jet somewhere.

 

Ok thanks. I see the #'s now. Looks like it came with 155 and 160. I think I will give the 160 a try. Thanks guys!

 

The 160 jet worked like a champ. Thanks again!