Archive through April 20, 2012

[mgonitzke]

Bruce-

I had that problem with the 100 I restored a few years ago. The solution is to adjust the position of the arm on the cross shaft beyond the initial setup described in the manual such that it results in a slower engine speed. The manual says to perform the initial adjustment by loosening the arm on the shaft, rotating the arm (CCW) as far away from the carb as it can go, and rotating the shaft CCW with pliers as far as it will go. Then, tighten the clamp slightly so they'll move together, rotate the arm and shaft CW slightly, maybe 10-15 degrees, then loosen the arm and turn the arm CCW as far as it will go again, while not rotating the cross shaft. Retighten the arm and you should be all set. If not, repeat (without doing the initial adjustment again, of course).

I had this problem after replacing the governor and cross shaft, and have heard of others having the same issue after replacing those parts. I wonder if there was some slight change to one or both of those parts that is causing the initial setting outlined in the manual to be invalid after replacing those parts.

Edit:

I should also mention this is a 'last resort' to be done after you've verified that the spring is correct and in the correct holes on the linkage, etc...

 

[bnolte]

Charlie,
I have a dogeared copy of the manual in my shop, and I have played around with several combinations of springs. Now there is one difference, I am not using the same carburetor as the 129, I am using the carburetor that was on the 125 engine, which has a little different linkage setup. I have tried several combinations of the spring/arm position, and I initially tried where it was originally set up. I took some photos of the setup on the 125 before I dismantled it, I can check them to see if I am off-base.

Here is the governor original setup in the 125

Here it is as it was on the 129

 

[mgonitzke]

Bruce-

According to the manual, the spring needs to be in the top hole of the speed control bracket that the throttle wire connects to. Also, maybe it's just the angle of the pics, but I can't see a high-speed stop in either of those pictures. If you don't know what I'm talking about, look at the picture of the governor components in the manual.

 

[dross]

Bruce you set the max RPM with the throttle cable. If your pulling to hard on the spring all the time it will over rev. Take the throttle cable off. If, as you say, theres nothing wrong internally the govenor will push the throttle closed

 

[hydroharry]

Bruce N - thought I'd chime in here. Matt mentions the picture in the manual shows the spring in the top hole of the speed control bracket where the throttle cable connects. I see that picture in the manual but I've never seen a Kohler in a Cub Cadet connected to that hole. They are almost always in the 2nd hole or 3rd from the top. I suggested the 3rd hole which is where your pic shows it was originally on the 129. Also, when you have the throttle cable pushed to the "idle setting" that spring will have absolutely no tension and almost fall out of the holes it's in. If you watch the spring action while you move the throttle from full to idle it should act like it's pushing the Governor arm such that it forces the throttle linkage on the carb back to the idle position. If its not pushing the carb throttle back to the idle position then it's not set up correctly. You may have to move your throttle cable forward so it takes all pressure off the spring and allows the Governor to move the carb to complete idle position. Best if you could post a pic of where you have everything right now and we can help from there.

 

[mgonitzke]

Dave-

The max speed needs to be set with the high speed stop that I don't see in either of his pictures, not the throttle cable itself, as that would not be very repeatable.

 

[dross]

Matt. if he doesnt get the throttle set right first what good is the throttle stop.

 

[digger]

It's just gotta make you wonder what's so difficult about it!

 

[proessler]

Chuck K, your rear implement looks like a middlebuster not a Moldboard plow. Check out plows @ brinly.com...

They have updated their site. Or check youtube for brinly plow...PWR

 

[drglinski]

Got a question. The 147 is smoking quite badly upon start up but after about 1-2 min. or less of running, it goes away. No knocking or such. Is the motor going soon?