It’ll run, but I had a problem once where my car just didn’t want to start from a dead stop. Turn Marshall picked it up, had me blip the throttle, and it worked. Put it down again, nothing. He then pushed the car while I gave it throttle and it got going again.

in my case, it turned out to be a dirty connection, which after some quick blasts of contact cleaner on motors port and the cable connector, solved the problem. Until I resolved that though, the cogging at low speed was so bad that it just wouldn’t turn over under load.