350x jetting issue

[Duramaxforlife]

I’m having an issue with my 350x backfiring and I can’t seem to get the jetting right. I have a supertrapp exhaust. It runs great with no bog. Just wondering what size jets you would recommend? Thanks

[jb2wheels]

Sometimes air leaks in the exhaust cause popping that sounds like backfire.

Check the seals where the exhaust connects to the head and where the muffler joins the head pipe.

My stock 85 pops on decel. I quit worrying about it and just ride.