dobermann posted:At first only the motor with the tach tape was running. A little push got the other motor running but it starts later and doesn't run as fast as the tach motor. Any suggestions ?
If the other motor turns free through a full rev of the wheels, I wouldn't worry about it. That motor is somewhat "along for the ride" when you have a speed control on one motor only. When I do bench testing on the rollers, the motor with tach sensor always starts first and the second motor only run when I add speed or add friction to the monitored motor to increase the drive voltage.