most of the time your pedal position is linked into the motor controller which controlls how much current from the batteries makes it to the motor.
dont know, but probably, it cant be rocket science to rip the engine out and replace it with a motor, can it? try it and tell uz if it works!!!
Prolly not because a bike speedometer works by the circumference of the tire and rotations
Accelerate around the corners
It depends on the type of kart - from 50 kmph for rent-a-karts to over 200 kmph for professional Superkarts.
anywhere from 35 mph to 110 depending on the gear ratio and the horsepower and the max rpm of the engine