Hello,Problem I can't change gears when the motor is running.The mower has the auto drive setup, It has a one speed trans it has rev/n/drive,it will not come out of gear with the engine running it just keeps pulling until i shut it down. I checked the drive belts upper and lower they are fine. Adjusted the idle arm for the auto drive. I dont understand why it wont shift. When the engine is running the shifter is stuck in gear and i cant move it. Thank you:confused