Hi I'm working on a Buddies quad again. It was running perfect, has been to the dunes twice this season. He washed the bike a few days ago, after washing he took it down the street, said it was running great like normal, until he pulled back up to the house, when he went to add throttle to pull in the garage, and it stalled out. He thought that was strange because he didn't do anything that would normally make your machine stall. It started right back up, but as soon as he hit the throttle it would die again. So this is where I'm at. The bike starts and idles. It doesn't idle quite as smooth as it normally does, but will sit there and idle, with a slight miss or bog just sitting there. If you try to add any throttle it dies out. I cleaned the carb, checked the spark plug, and it looks great. Replaced the petcock, and still doing the same thing. I told him I think it could be the cdi, so he has one on order. I'm thinking either cdi, or possibly the timing chain tensioner could be bad. Anybody had this issue, and know what it took to get it fixed, or any other suggestions?