Hi guys i'm having some weird problems on my '94 xr600r. It seems that misfires once in a while or at least is what i think it's happening. I'm a bit pissed off because if it happens while iddling at a red light on the city, the bike deads. You can imagine how frustrating can that be. I think it's a misire because it also does it once in a while when cruising at very little throttle, you can feel a power loss (a shake) during a small instant and the power comes again. When it does while iddling it makes like a little explosion and dies. Oh yeah, if i'm not wrong it only does it when hot, but not shure 100% as it's an intermitent problem. The bike always starts at first or second kick when cold and when hot maybe at 3rd as much. What can it be? I read somewhere that the spark plug boot can go bad over time, can that be the problem?