Beartracker 250 timing
Ok- I got a whole new top end.
My original problem was it somehow "lost" the timing gear keeper/dowell and the piston smacked the intake valve, lost one of the valve keepers. I bought a new valve and keeper and dowell, put it back together and it ran fine for a day and just bam! stopped running. Checked it out and no compression. Took it apart and this time it smacked the exhaust valve- must have jumped time?
Now I bought a jug, piston, and head. I have it all together, but am worried about the timing. There are three timing marks- turning the flywheel counter clockwise theres one thick mark, then the thinner F mark, then the thinner T mark. I timed it off the T mark (last one going counter-clockwise) it started right up. I adjusted the valves, but when I turned the cam gear one full turn, the valves seemed the same as when I checked it last, I never got to an exhaust stroke. Is that one turn on the cam gear, or one on the flywheel? The exhaust got hot right away, the throttle response is terrible. It will rev up and not come back down, and it wouldn't take fuel. I adjusted the air screw and ran it awhile and got some clean gas through it, it runs better but I am worried I don't have the timing set correctly. I cannot locate a good pic of the correct timing marks. Do I set it off the thick line or the T mark?
It also seems to have a lot of timing chain noise. I just want this piece to run I'm tired of working on it!