My Raptor just started to miss when i hit the throttle hard and fast. it only missin right when i hit it and then it's alright. but once i warm it up it misses every time i hit it hard. i run supreme gas. just oiled the air filter. i thought it may have to much oil on the filter, so i got an old shirt and squeezed as much oil out as i could. it still acts up. anybody got any advice?

 

I'm assuming you had it jetted properly for the pipe and air filter. Did it run just fine yesterday and then started acting up today? My guess would be either a batch of bad gas (even supreme can get water in it, get your gas from the most used gas station locally, when gas sets in storage tanks for a long time condensation builds up and water gets in the gas that way). Try dumping the gas and getting a fresh batch. If it still does it then it could be that your ignition system isn't producing enough voltage. I'm not real sure to be honest though, it could be a few different things. You could have gotten a piece of junk in the carb.