I have a 2000 warrior i have hade it 4 about 2 weeks. when ever you let of the gas it back fiers like crazy. it dosn't have a stock pipe it hase a supertrap exaust. i was wondoring whut to ajust and how to agust it to sop the back firing. Would a stock exaust help?

thanks Jordan

 

Did you rejet your carb when you put your pipe and filter on?

Also are you sure it's backfiring when you let off the throttle and not just doing the regular popping/etc. that you get with a straight through pipe?

-Marc

 

A backfire could be any number of things.Some more common things to look at are jetting and air leaks around the intake.I would not ride it until you get the issue resolved,as more than likely you have a lean condition that could result in severe engine damage.
If you want to try to handle it yourself, pull you plug(spark plug that is) and tell us what it looks like.
Good luck.

P.S. Check your air cleaner too....It may have fallen off or be damaged.

 

Exhaust leaks can also cause backfiring, especially if you're running rich. Unburnt fuel in the exhaust combines with oxygen sucked in through leak in the exhaust and ignites causing the backfire.

Colby

 

It could also be the valve clearance.

Too tight a valve will cause it to backfire,

 

thanks the guy whow hade it befor me didn't take very good care of it so i can't amagen that it was jeted, how do u jet it? can i do it or dose the dealer have to do it?

 

It isn't extremely difficult to jet the carb. Do a search on the forum, there is quite a few posts on this subject with good information and links, etc..

Good Luck,
-Marc