1450 engine racing
 

The K321AQS on my 1450 seems to start racing after warming up. The RPMs jump way up (I don't have a tach so I'm not sure how high). I've adjusted my carb (back to and tried to adjust the governor (both the shaft and the linkage) but it still does this.

It may be unrelated but it seems to have happened after I 'Sea Foamed' the gas.

Any thoughts about what could be causing the high RPMs and how I can fix this?

Do you still have Sea Foam in your gas or is it fresh?

One of my 129's did that, too. It was the two mounts for the rod that held the float in the carb had cracked, not allowing the float to actuate so I had to buy a new carb body to fix it. Your problem might be different, but that was my situation and thought that it might help you out.

Cub Cadet 123

I guess the first thing I would do is lose the gas treated with seafoam. I have heard a lot of bad stuff about seafoam. I would start with fresh gas and try resetting the gov per the Kohler manual. If that does not help then it sounds like your gov gear or cross shaft has bit the bullet meaning a tear down is in the near future. I hope that is not the case. The only additive I use in my gas is Stabil. Gas goes bad pretty quick any more. Good luck Kelly:bigthink:

Kohler does not want the small motor owner to use additives in the fuel.

Sea Foam is an additive.

Same Problem
 

I had the same problem with my 1650 and had to replace the governor shaft. I never really cared for the "Quietline" tractors. They always vibrate alot even after replacing motor mounts which seems like always. I ended up fixing my governor and traded that 1650 for a yellow and white 782. Good Luck.