I have a 99' Toro Z Master 147 with a 17HP Kaw. The engine will not Idle. The motor sounds like it is over reving. I disassembled the throtle control and pulled the arm off the govoner. The Govoner don't appear to be working at all. The pin is missing. I can run the RPM up and the gov doesn't move at all. If I contol the throtle manually on the carb it idles just fine. I have adjusted the crab out of everything there and non of it seems to help. If anyone has any ideas, Icould use them. THANKS!!!!!