Okay I have a 04 mxz-x 800 and I was riding the other night taking an easy at 40 mph when the sled lost a cylinder. I was out in the middle of a field near no roads so I started it and if I got on it the sled would clear up till I let off the gas. now after trucking it home it will not do anything but fire on mag side backfiring like crazy with no power. changed plugs then wires then coil. it has 135 wot compression on both cylinders (3 pulls) I went through the carbs exhaust valves sprayed carb cleaner around crank seal its not bad its getting fuel. still doing the same thing! im stumped on this one im going to test stator and trigger coils when I get home but it has spark!!??? Any suggestions??