I was just given a John Deere STX 38 Model M00STXB010979 with a Kohler Command 12.5 OHV Model CV12.5S engine, Serial # 1916501688,
It is Gear Drive 4 spd forward. I would like to know how to shift this. Can it be shifted on the fly, or do you have to be stopped? If stopped, does the clutch have to be depressed or released? Also, is there any way to tell date of manufacture of the riding mower and Kohler engine? Does anyone have an operator's manual for this model?