Choke rod hook up

There should be a choke lever on the engine side of the choke shaft. Attach the rod with a small spring clip or cotter pin.
 
check the choke shaft on the carb where the arm goes to see if its all worn down, should have a spline on it
 
I'm putting a new card on it also. I just got this tractor. It's all new to me. I've never had one before. Plan on a refurbishing. Thanks for your help. I'm sure I'll need more advice.
 
If you are purchasing an aftermarket carb from overseas check it to make sure that it's made correctly. Some of them "out of the box" do not have all the holes that they should have and the float is probably not going to be correct. If you have an IH or Zenith carb it can probably be rebuilt. Contact McDoanald Carb and Ignition for parts. JMHO. Stan
 
This may help you some…
 

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Hi,
Below is a picture from TM Tractor Parts of the choke arm on a Cub IH carburetor. It should be in about this position when the choke valve is fully open, if it has the original length choke rod.
The choke rod should be just above the Touch Control tubes when the choke is fully open.
The 2nd picture shows it. If the rod is too low, against the tubes, increase the bend in the rod by the carb, shown in the picture. :)
 

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You didn't say what year the Cub is. Below are Cub owner's and operator's manuals for several years of Cubs, they have lots of info. The experts on here recommend that people read the manual closest to the year of their Cub.
 
Thanks to all for the advice. First of all I'm not sure of the model, I was told between 1948 & 1950. I can't seem to figure it out. And I'm going to have someone rebuild the original carb. Any help on how to tell the model would be greatly appreciated. First time owner. All I know is I don't know anything.
 
Thanks to all for the advice. First of all I'm not sure of the model, I was told between 1948 & 1950. I can't seem to figure it out. And I'm going to have someone rebuild the original carb. Any help on how to tell the model would be greatly appreciated. First time owner. All I know is I don't know anything.
If it is original and that is the year range you will have a Farmall Cub up draft Carb.
 
If you mean you don't know the year of the Cub, it is easy to find.
The serial number is stamped in the plate on the right side of the steering gear housing.
Sometimes the plate is painted over by someone, or the words are faded away and can't be read.
Below is a page from the 1950 Cub owner's manual showing where the plate is.
https://farmallcub.club/rudi/farmallcub.com/rudi_cub/www.cleancomputes.com/Cub/Cub Owner's Manuals/McCormick Farmall Cub Owner's Manual 1950/Page 02.jpg

Sometimes the plate is gone.
If the plate is there, use a light and look closely to find the number. If the plate is painted over, you can probably see the number in the position where it should be.
There is also 1800 stamped in the plate, that is the maximum engine RPM.
Below are pictures from TM Tractor parts of Cub serial number plates. The style of plates changed through the years.
Pic 1 was used beginning in 1947.
Pic 2 was used from 1950 - about 1956.
When you find the serial number, you can find the year in a Cub serial number list, or ask on here. :)
 

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There were at least 4 different IH carbs made, maybe more. The principal difference in all of them is the oriface size of the main jet. The other replacement parts are the same. Check your carb for the IH part number on the top on the flat surface next to the fuel inlet. You should find a 6 or 8 digit number which is the part number. In my earlier post I referenced McDonald Carb and Igniton as a source of repair parts. Best to call Morgan McDonald at (706) 367-4179 and he will tell you what you need to repair your carb. Best prices and the parts are exactly what you will need. JMHO Stan
 

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The plate with the serial numbers, is completely worn down. I can't identify anything on it. I did find some date codes stamped in the casting. The engine date code is 12/10/R which I think is 48. And the transmission data code is 1/7/S which I believe is a 49 which makes me think the tractor was sold as a 1949. But again I am not sure. I also can't find anything stamped on the carburetor which is still on the tractor. If it has something on it, it must be on the back side. I haven't taken it off yet, because it's the only way I came move it around right now.
 

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Your picture is pretty blurry, but it looks to me that you have a Zenith carb. Those don’t use the choke rod, like the IH does. It instead uses a cable.
 
Really bad picture I know. Is that original to the tractor. It has the splines on the engine side for the pivot arm and choke rod hook up. I prefer that method. What carb do I need to make it original?
 
The tractor would have originally had the IH carb. When IH discontinued production of that carb, they offered the Zenith as a replacement. I don’t think I’ve seen the splined shaft on a Zenith but if your has one and the new lever fits it, you should be able to go that way. Be sure to let us know the outcome.
 
I agree with Gary that you have a Zenith. It looks like the orange twine is connected to the choke, but I'm not sure if it's set up to open the choke once closed for starting.
 
I have a couple cubs with Zenith carbs, and they both have the splined choke shaft that takes the lever for the choke rod.
 
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