My question concerns the throttle positioning sensor and how it works. Is it essential to have it contected? I just had the motor redone with a piston, rings and valves cleaned up. The bike ran beautifully on the trail and over jumps. Good power and feeling tight. My problem arose when I was holding a steady throttle at about 1/2 to 3/4. It was acting like a rev limiter was knocking the motor down but I could rev through it. Will the TPS cause this hesitation? Should I lean out the carb or rejet being I had a rebuild?