I have a Kohler Command CV13T hp on my Toro w/behind. The governor came loose on the shaft. I bought a repair manual and set it up according to the manual, and the governor still did not work correctly. I took the mower to a repair shop and they got the enginer running properly until the blade engages. They advised the engine was low on torque, after a compression check they recommended that I buy a new engine @ $750.00 I plan to pick up the mower and get a second opinion. Any suggestions as to what the problem may be? The Engine was running ok prior to the governor cam loose.