Let's discuss Speed Controllers
For this racer, we need a speed controller for a 48V system
...& 1,000W brushed motor
Here is the Yalu Model YL-03 48V 1,000W speed controller
...that came with the motor kit
...but, the label (on it) doesn't have much info

To help explain further
...this WYYS48 is a 48V 1,000W SC (speed controller)
...that I "fried" a whilst back

...but, the label, on this one, has more info
Model #: WYYS48
Power: 1,000W (for up to 1,000W motor)
Voltage: 48VDC (for use with 48V systems/battery packs)
Current: 32A (nominal current capacity 32 Amps)
Short Voltage: 42V (controller will "shut off" when the 48V battery pack, gets below ~42V)
Throttle Voltage: 1-4V (controller accepts throttles with a 1V-4V range)
Function: Reverse: (controller has additional Reverse feature)
Production Date: 20220910 (Made on Sept. 10, 2022)

Here is the wiring diagram that came with the kit

These are the big Power Wires
...Red (+) Black (-) are the Battery cables
...& Yellow & Blue are the Motors Power cables

These are the smaller Signal wires
...like Power Lock (On/Off), Throttle, Charger (Battery Charger connection), Brake (switch), Voltage Meter & Brake light(s)

Also/supplemental, Warning & Instructions
