December 28, 201510 yr Hoping someone has come across this and found the cause. 2015 oset 20R one day working perfect, the next on turning the throttle there is a momentary lurch , wheel turns slowly about a half turn, then nothing. Lights show full charge, batteries are charged and balanced and showing 48v at the switch. I've tried unplugging each of the controllers, speed power and throttle response as suggested elsewhere. No difference. All connections appear ok beyond that, stumped!!
December 28, 201510 yr Is the relay under the rear fender clicking when turning the key? On my 20.0 water had gone in to the relay so it seized.
December 28, 201510 yr Author Good point, just tried it and no click will look at bypassing it to check, cheers
January 20, 201610 yr Did you try bypassing the relay? Try feeding the motor with 2 separate wires with 12 volts from one of the batteries to rule out motor problems(with the rear wheel lifted a bit off ground while bike securely fastened to avoid danger)
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