[Al Skierkiewicz]

K,
Since it is a new motor, the lubricant hasn't really had a chance to distribute itself inside the case. Run it for a while and I think you will find it will speed up. Due to the odd shape of this motor, they are often dropped or set down hard on the shaft (threaded end) which causes a bent shaft or a crack on the back side of the gearbox, this could cause misalignment of the gears and results in slow free speed. If you find a small crack, there is no coming back from this failure and it will only get worse with time.