I have a vmx12 velimotor bike I was changing the throttle to a surron style throttle and I have wired it up and now have no throttle response Tryed th

[Andrewharper42]

I have a vmx12 velimotor bike I was changing the throttle to a surron style throttle and I have wired it up and now have no throttle response Tryed the old throttle and nothing atall now the apt72400 controller is flashing 2x can anyone help thanks Andy