Cannondaleriders

I am lookig at this as I am having almost the same problem. I have picked through the same things you have. I am switching the coil tomorrow and then I am swapping the Throttle body out completely. I am wondering if it may not be a valve issue.

I'm almost 99.9% sure that it's not a valve problem. This is either a fuel supply or fuel control problem.

Has this motor been modded?

It has the reangled injectors. That's it as far as I know. It's been running fine though right until hitting the track after cleaning out the cylinder. It's like hitting a jump knocked something loose or something, but we can't find anything.

Does it idle normally?You didnt have to move the screw at all since the oil.

Im guessing you have a bad coil.

That's what's weird to me. It idles just fine. If you hit the gas it immediately quits firing, but as soon as you let off it idles right back up. I did a throttle cal, but that was while trying to fix it.

I think Jwheat has an extra coil laying around. If so we should be able to swap it real quick. It sure would be nice if that's all it is.

I had a similiar problem, 27 should remember, mine would idle great, hit the throttle would die or fall on its face.

I had to switch out my wiring harness and that took care of it.

That's not entirely correct.....we haven't determined that it quits firing and I haven't had much time lately to spend on it. I'm going to try and look at it this weekend.

Wasn't there an issue with the throttle cable rubbing some wires on the Quads?