just wondering i'm going riding around st. joseph (elevation 1000-3000ft.) this weekend and i'm getting some mods, but the thing is i'm not gonna have time to fiddle with the jetting. So i was wondering about what size main jet would i need? and would i need to move the needle clip any?

Here's my setup (already listed, but just in case)
2004 KFX
stock engine
airbox with K&N and removed lid
slip on titanium 4 with mid pipe

thanks for any replies.

 

First off, I would recommend a 900 mm carb. Its big and it lets you have more fuel. In fact, it might be as big as your 4-wheeler if not bigger. But at least you know you will have a lot of fuel. [img]i/expressions/face-icon-small-cool.gif[/img]

 

In all reality, from what I have heard from experience and from asking FMF questions, I think it would be wise to choose a 158-160 main jet and leave your screw settings stock.