recently i bought a small chinese quad from a friend really chep ($60) because he couldn't figure out what was wrong with it.
it cranks but does not start.
after about 2 days of messing with it i got it to start but i still don't know what is wrong with it.
when it started i removed this bolt and it started right up, when i put it back, it doesn't run.
When i remove the bolt this cover pops out a little and rotates slowly
Also when it is on it only runs with the choke on, if i take it off it dies immediately.
Could it be the timing, or valves.
I have been reading a lot on these and i was thinking the valves might be too tight.