Ok, with your help my SA now idles smooth on the first notch.
Checking the archives I found more info on the jam nut adjustment on top of gov.
Tach meter is going nuts on me but at full throttle it sounds normal and there is quite a bit of gov rpm increase left.
Question: From idle the throttle moves about halfway before I get a response from the engine. Is this carb, linkage or gov or normal.
Thanks,
Dell

It can be caused by any combination of things but if you haven't already I'd try syncronising the governor to the carb. On the LHS of the tractor there is a yoke on the front end of the link to the carb from the governor. Remove the pin. Set your throttle lever (up by the steering wheel) to full throttle (tractor not running, by the way). Push the link rod you have disconnect to the full throttle position on the carb. If the pin will now go back through the hole you're all set. If not adjust the yoke until the pin will fit in without tugging on anything. Hope that helps, Sam

It's not unusual. I had one that started out working at the bottom and ran out of work about halfway up, another that didn't start until halfway up. I worked most of it out, and got them to respond over about three quarters of a full throw on both by straightening and bending on the linkage from the lever to the governor on the right side. Each adjustment on the right required a re-synchronizing of the rod from the governor to the carb on the left side.

A few other things come to mind. One is those two springs on either side of the blocks that links the lever to the governor. They get worn out and sometimes lose a coil or two over the years. Replacing them may help.

Another is the thrust spring in the governor, the one in the center shaft, that holds the button against the inside front of the housing. If that is weak or failed, it may make a difference.

The last may or may not be a problem. I need to get off my tuchas (OOOpppss! There goes the Yiddish again! How does a practicing Episcopalian pick this stuff up!) and go out to the garage and do some measuring. I've speculated before that the throttle lever/arm on the carb, if it's of a different length or geometry, could make or just aggravate the problem, by changing the amount of throw it will take from the governor.

At the least (and it sounds like you're there) you want to be able to achieve low and high idle from the lever on the seat, and then work from there. Having the benefit of finer adjustments to motor and therefore tractor speed is never a bad thing, whether raking hay or trying not to run over the Cub Scouts in front of you in a parade.

What are you using for a tach? I found an inexpensive laser tach that works well for me.

Sounds like the gov housing needs a rebuild along with gov assy then set linkage correct then you will have throttle response like new.

Sam, synching was already done. Thanks.
The tractor is actually running super and I guess I shouldn't look a gift horse.
The springs are good and tight on both sides of the linkage block on gov side.
I am going to tweak the linkage and check the inside of the gov as time and weather permit.
Thanks for all the help.
Dell

Wasn't sure, I guess I came in half way through. Sam