Motor sometimes spins on its own.

[Dylan23]

I just wired up my new controller and sometimes when I turn the bike on like once every several tries the motor will randomly spin and won't stop until I turn off the bike. Turn back on the bike and the problem is gone, repeat this and like I said every several tries sometimes it will just randomly start spinning by itself. Any ideas? Maybe a bad connection on hall sensors? Only thing I can think of because the crimps I put on the hall sensors weren't the best.

It's a sine wave controller without self study wiring. Maybe it's some kind of weird thing with that.