@scrambler
Yes, NC - normally closed while driving.
JWPF - is a type of connector manufactured by J.S.T. Mfg. Co., Ltd. Are used by silixcon. The controller has several of them. There is a 4-pin JWPF female connector for throttle and brake cut-off: 1 black isolated ground, 2 blue brake signals, 3 green throttle signals, red + 5V.
The LMX does not use the brake cut-off function. To drive the bike pin4, the red wire (+ 5V) is permanently connected to the blue wire on pin2 (brake signal). Pins 1, 3, 4 are for the throttle.
Take off the motor, below is controler silixcon and connectors. Find the 4pin connector - black, blue, green, red wires. Disconnect the connector, strip the insulation of the male connector, pin4 is connected to pin2. If you disconnect the connection from pin2 to pin4, the motor will not work.
In my LMX64 I made NC brakes and connected to pin2 and pin4.
I don't know if it can work with a normally open lever. It may be necessary to program the controller to NO.