Anybody know what would cause a bobcat 753 to keep running for 15 to 20 seconds after the key is turned off?
Have you tried disconnecting the 3 wire plug connection at shutdown solenoid and see if it dies immediately?
I would agree with Atco, we had a bobcat a220 that would not shut down until it was ready, and it was the fuel shutdown solenoid. Easy to replace, and I think it was about $180.00 for the part.