I am still not sure what the problem is with mine. It has a mind of its own and will run good at the shop but screw up at the house. I took it to the local shop and if ran fine for me and the mech there so I took it home and with in 5 min it was so slow you could read the letters on the tires wile thay were turning. I put it up for a week or so and the next time I got on it ran fine. All the wires are tight but I wonder if there is a loose wire in the motor and when it bangs around in the trailer it shorts out?