Just got out of the woods after some pretty good/heavy riding and took the back road home (maybe 2 blocks) on pavement so I had it up to 40-45 mph and all the sudden my 450 KQ backfires on me. Just wondering if this was from something I did on my ride or just random? anything to worry about or look for? thx all

 

Anyone have any thoughts on this? I have only had this quad a month or so but it has never done this before

 

did you have it wound up then back off the throttle then open throttle again? common occurance on alot of machines

 

Pretty much just a straight away at about 40 mph then a fairly abrupt deceleration

 

I know that most people complain about this also. As it seems the muffler holds in gas. and once you throttle hard and let off it will backfire. I've seen a few drill a small hole in the muffler to allow the gass build up to escape. Doesn't bother me as i am use to it. I like to see people dunk and move when it backfires though.