[Cruzen]

Hey fellas well i got a orion 21 right been the greatest little bike, had it over a year now been going strong untill recently i heard a tick tick in my head sorta on the left hand side if ur sitting on the bike i just ignored it because it would go n come back etc.. untill the other day i was riding did a simi circle burn out on sand/ dirt rolled for about 2 meters turned off the bike, tryed to kick it and it would screach like something is scraping and when i hand turn the kick starter it sounds like it in gear when the back wheel clearly moves freely indacating it is in neutral, i took the spark plug out and kicked it with my hand in neutral again and it is still rough and hard to push down with some screatching sounds (sounding like its in gear) checked the oil still plenty of oil what do u think could be the problem? thx heaps