Wiring for the PTO clutch got hung on something and the connector got munched by the pump drive pulley. Nothing on this mower is convenient or easy to access save for the fuel pump, air filter, and one spark plug. I guess it's still better than a lot of regular riding mowers.
Can't say too much bad about it though. 20 years old and over 2000 hours on it and still running strong on the original engine, hydraulic pump, and wheel motors.