Process to adjust carborator on WD

From what I can tell, there are two carb adjustments. A screw (on top), and a pin that screws in and out (on bottom). The manuals says the screw is for idle adjustment & the pin for "power" adjustment.

At first, id did not touch the screw. I backed the pin out, until i was getting black smoke, then screwed it in until the smoke went away and it ran good. This worked for awhile, but a half day later the same thing happened.

So, i started playing with the screw. In playing around with the mixtures, i'm afraid i may have made things worse. I can get it running fine stopped, but as soon as I put a load on it the trouble starts.

Can anyone tell me the methodology for adjusting the carborator on the WD. There has to be a better logic than i am using.

Thanks,
flinny

Then, the power screw. This one is tougher because I couldn't find a starting point. What I do is to turn it out 3 or 4 turns. Then you need to work the tractor and make adjustments. In this case, turning out the screw makes the mixture richer. If you are getting black smoke, you are to rich and need to turn it in. If you have no black smoke, and other problems, you are probably too lean and need to open it more. It is trial and error deal.

I never had any problems with my Allis's. I could usually find the right setting easily. I also have a Ford 901. I fiddled with it for a couple of months. Finally I got someone to drive while I adjusted. I finally found the right settings that way - there wasn't much margin for error on the Ford. Maybe you'll have a similar experience.

Here is what I found out about my "carborator" problem.

The carb was ok. I took he cables off each plug & listed to the engine. Sound tells you if the cylinder is firing. I found one that was not. Replaced the plug & then was able to set the carb.

Likely, the mechanic who overhauled it had the carb set to rich & it fouled a plug.

I thought I would post this, in case someone else had the same issue.

Maybe i'm dumb, but it is fun to learn.

Best,
flinny

I'll give it a try