My sled was cutting out when i would go to give it WOT, and act like it was going onto one cylinder, than kicking back onto two when i let off. I thought it was the new plug caps i put on so i bought a new one, but it did the same thing. I changed plugs and it still cuts out but not as bad. When I hold it to the bar now it will skip just like a truck with a bad blug wire and act like the motor is numbed and have very little power. If i clamp it from a dead stop its alright for a short time, but than act like its just going numb and loosing a cylinder. I checked compresson and both are even. Anyone know what it could be?