96 banshee racer

it was sorta out of the blue, once i oiled my air filter, k&n one with oil, it stopped working, so then i cleaned the oil off it and it dident kick in, and then i tryed running a drag twst with no filter and it dident kick in.--- also cleaned sparks like 3 times with the fluid stuff and i wiped with paper towel, i did not sand them

hey, i have a 1996 yamaha banshee, and when i go full throttle, it just flutters and the powerband wont kick in, need some help please, because what is a banshee with out its powerband? i dont know if this will help at all but, it has the following modification... ported and polished jugs advanced triming kit 2 into 1 trinity intake american racing 2+2 A arms dura blue axel maxxis tires front +rear 1 1/4" handle bars pro circuit pipes high volume water pump inline cooler barrett heavy duty clutch Vito's pistons milled head AC nerf bars AC skid plate (front and rear) PRM grab bar Elka Front Shocks