i got a 05 250 trailblazer 2 stroke that is my moms . she has only ridden it 3 times and shes one of them people that doesnt like to ride fast,(she likes to just putt putt around), well it started about 3 weeks ago when i started it up and it had t just idling so i thought surely she hasnt already fouled out a plug on it so i changed and it didnt help. But now when you start it up in neutral and rev it a little bit it has a knocking sound about very 3 seconds. it sounds like its coming from the cylinder but when my scrammy went out it was contiuous prolly 20 times a sec. i think imight have some trash issues in the carb that would explain why its not running good but i dont know what the knocking could be.......i need help

 

is it the engine or maybe the primary clutch hitting the cover? w/ that much time i wouldnt think it would be piston slap or crank bearings. just a guess though.

 

if it has been sitting take the clutch cover off and look things over.The belt could have been feeding some mice

 

ill take the cover off and see.... that would make sense

 

nope that wasnt it everything looked to be ok[img]i/expressions/face-icon-small-mad.gif[/img]