Tire - Wheel

even with an exhaust issue ... i would think it would try and rev some... fuel issue would be my thinking (from the description) the backfiring ...  has me thinking. but it just happens when you feather the throttle ? 

Haven't messed with it yet.  Got swamped at work this week so hopefully will look at it this weekend.   I'm guessing to check the injector I need to pull it off and see if it's spraying?   Does the same thing with the air filter off, but it does need a new one.  It's not dirty, but the foam is coming apart at the seam.   Breather cap.....?  Fuel tank vent in the cap?   I do need to check the exhaust.  Didn't think about that one.

i seen your friends  @basfnb had some comments ... lol. 

Why don't you tell us how you really feel Fish!   I've messed up more stuff with a dremel than I've fixed with a dremel.  They look all small and you think you can get that job done quickly with one, then you grind/cut and screw up what you're working on.   The bright side is, I'll bet that plastic part you're grinding on is cheap @WonderMonkey.  My approach now is to make it functional, buy an extra part in case I ever want to make it pretty again, and then not worry about how my mods look.   Over time I've realized that my ATV's stay covered in mud most of the time anyway, so who cares if it looks perfect?  That used to drive me nuts, so I started hoarding parts, so know I know that I have replacements in the shop if/when I want to make it look pretty again.  That tamps that OCD down real nice.

You guys missed the below sentence? Listen to the engine starting at about 1:25minutes. Do you hear then still?   From my video post on that page.