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  1. R

    Screeching motor and lack of power

    Well, after many controllers setting finagling, the motor still screams, but only for a bit. The screeching kind of goes away after the bike gets moving.
  2. R

    Screeching motor and lack of power

    Please do. Sorry for posting on the wrong thread.
  3. R

    Screeching motor and lack of power

    Hello! I'm converting a coleman minibike to electric. It runs, but the motor makes a terrible high pitch screeching sound and the throttle reponse is very poor. I first started with a 48v setup and everything ran fine, but decided to upgrade to a 72v system and the issues started. My setup...
  4. R

    Motor suggestion

    Thanks for the suggestion Markz. I was looking at QS motors after I posted.
  5. R

    Motor suggestion

    Rough running and hot controller and insufficient power sounds like you have a false positive hall combination. If you only swapped phase wires and did not also swap halls as needed to match (not usually color for color), and it started out as a working good combination, then it has probably...
  6. R

    Motor suggestion

    Converting a Coleman mini bike to electric. I installed a Kun Ray 2000w motor and controller combo from Amazon. It works, but only on the flats. Any hills and the motor doesn’t have enough torque to move the bike and the controller overheats. Also, motor runs rough at lower speeds. I did...
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