Hey guys, new to forum;
Chasing some mechanical advice, I recently bought a Kawasaki bayou 300cc as a non running quad that turned over with spark. After confirming it had spark i hooked up a jumper pack and filled her with fuel, after a bit of cranking and a bit of start you bastard (starting fluid) she fired up but was clattering/knocking but it did not sound like a rod knock. She then died and would not turn over. I then removed the pull start housing and turned the motor backward using a screwdriver in the engagement teeth of the pull start, as i turned it over it felt a lot like when the chain of a dirt bike is adjust far to tight (kinda jumpy and draggy). She then turned over fine (just the same as before) i then cranked it over for about a minute (with the spark plug out) without issue. Thinking the issue had resolved itself i tried to start it again and just as it fired up (ran for maybe 3-5 seconds) it "seized" again this time it didn't seem to matter how much i tried to work it back and forth it wouldn't free up (moves maybe the tiniest bit). I did think it may be a stuck valve but they seem to be moving fine and considering its stuck in both directions (trying to turn both ways) i don't think it could be. Anyone have any experience with this sort of thing, the rattling/clanking makes me wonder if a piece of one of the gears or cam chain is jammed. Any advice or ideas would be greatly appreciated.
Thanks

 

What year is the KLF? Early ones (KLF300A1, A2) had glued-on magnets in the rotor, and they do break off.