K241 coming down to idle on its own

[skippymud 0]

Howdy

 

Re: 1979 Kohler 10hp K241AQS, Spec 46740d, Serial 9883128

Re: Jacobsen garden tractor model 1000 with M/N 53201 & S/N 13722

 

Curious problem.  Looking for feedback

 

So I'm mowing the lawn at full RPM with PTO engaged, and suddenly the engine RPMs drop down to idle and stays there until I throttle down then throttle back up again which gives me full 3600 RPM but just for a short bit.  Am I on-target by saying that the plastic Governor Gear is missing a tooth or teeth (P/N 47 042 02-S)?  This would mean that I would have to pull the K241 - Ouch!