The pink wire looks like the ignition wire to me. Easy to test. With the batteryconnected, if you don't get 5v on the red and black throttle wires, it's the ignition wire.
The white connector with black and white wires is the brake switch.
The small black three wire connector (black, red, white) is the PAS.
White wires with small black connector are speed limit (connect for limit).
The purple could be a number of things, but, as it doesn't have a partner, it'll be either battery voltage for a meter (LEDs) or speed signal for a speedometer. You can check it with a meter with the other probe on the battery black.
The final three wire white with purple, black and grey is for the three speed switch. Stick a piece of wire in the middle , and with your motor running at full throttle with the wheel off the ground, connect the other end to each of the other two pins in turn. One way will slow the motor down, and the other should speed it up a bit. The increase in speed depends on a lot of things, but you might find the increase useful. If you want to use that speed all the time, leave the wire permanently connected.
friendly1uk said:
Can I sneak in a question of my own? TY.
My brake plug is the 2 pin type expected. However it does not come from the controller, but rather it piggybacks from another plug, A 3 pin one. I have no idea what this 3 pin plug is. It has the same yellow and black wires present them self's, and also a red. Black in the middle. I considered 3 speed switch, but one speed would be off. I don't have a speed switch anyway, as the ku65 uses the off-board display/interface. It is a little boggling. I was going to ask if I came unstuck, but as the chance has arisen... Anyone know what it is?
If you want to use a two wire brake switch on the two wire connector, one wire is a signal wire that rests at about 5v (yellow), the other is 0v (black). When you connect the two, the signal gets pulled down to 0v, the controller senses the drop and switches off power.
The three wires are for a hall sensor switch like the "hidden wire" ones. The signal wire and 0v are the same as before, but it has an additional 5v supply (red) ,which powers the hall sensor. When you operate the brake, the hall sensor electronically connects the signal to ground, so again the controller sees the drop and switches off power. You can therefore use either connector because the yellow and black go through both.
