First of all, I'm new to the forum so I apologize if this thread would be better placed in another category. Not too long ago, I picked up a 2011 kx250f. Factory kawi head, weisco piston, Yoshi exhaust... all that good stuff. The owner liked the idle as low as it could go for whatever reason (he qualified for Loretta's A class so I guess whatever works, right? Lol). The bike seemed mechanically sound despite the fact that it kept dying on me. I figured I just needed some time to adjust the idle the way I liked it considering it ran fine when he took it for a spin. Now that I'm sitting down with it, I'm a little stumped. The idle has to be pretty high for the bike not to die when you hit the clutch. Higher than I'd like. The bike also dies really quickly when the idle goes about a step below that previous point (still higher than I'd like). What do you guys think the problem is? I've had a friend of mine suggest an air leak. Also, the bike is nearly impossible to start even though I've checked and made sure the valves are in check. Thanks!