there should ONLY be 1 pedal for the throttle/motor/gas(1 cable/connection)... and 1 pedal for the brake(1 cable/connection) on a norm the gas is on the right and the brake is on the left.
The brake is, at times connected to the braking system by either a bar/rod or by cable(unless we are talking hydrolics... TOTALLY different story!). The bar/rod will normally have a spring to retract/disengage the brakes. Dependent upon your braking system(scrub/band/drum/disk) the brake cable/bar/rod 'should' never connect to the motor at any sense or fashion.
Visa-versa, the gas is usually run by a single cable(at times a rod, to a cable). The throttle should never be connected to the brakes at any sense or fashion.
I 'do' wonder if the 'choke' is what the brake cable is connected to on the motor(2nd cable running to motor)?