4010 with usx 20 carb can't adjust

jbrooks

New User
HI , I have a 4010 with usx 20 carb . Last fall it started using excess fuel , 7 gallons in 1 hour . I looked at the carb and found the diaphragm was not flexible , ordered carb kit which contained diaphragm , spring , needle , seat and gaskets, cleaned and installed . Same issue , excess fuel , and found out turning lower needle adjustment all the way in had no effect , kept on running and using excess fuel . Also ran the top needle screw all the way in with no effect . This tractor is not being worked hard , it is running a wood splitter at approx 1000 rpm and has never used this much fuel . Any help would be greatly appreciated .
 
It's tough to find much advice/troubleshooting help for those carbs, they are sort of the "red-headed stepchild" of carburetors.

The general consensus is to replace them with a Zenith cast-iron carb and NOT look back.

But at today's price of $1250.00, WOW! Simply WOW!
Source for updated carburetor
 
I have my carb's worked on by Mark's Carb in MN. In a recent phone call with him he told me can redo those with good results. It just takes tools that almost no one has to do and set them. Tom
 
Send me an e-mail. I used to have the same problems with the USX on Oliver's Include your U S mail address and I will send you some service information. I used to have that USX tool kit. You will need a vacuum gauge for sure. J.
 
(quoted from post at 04:20:02 09/25/19) Send me an e-mail. I used to have the same problems with the USX on Oliver's Include your U S mail address and I will send you some service information. I used to have that USX tool kit. You will need a vacuum gauge for sure. J.

j.schwiebert
here is my mailing address, I appreciate any info you can send me
Thank you!
Joe Brooks
23996 jockey lane
Mankato , Minnesota , 56001
 
David I?d like to learn about your fuel injection system.
I have a 3020 gas
I?m interested in $ and compatability and what is included in your system.
Do you use old carb. As throttlebody etc.
Thanks for any info
 
I sent in 3 carbs to YT (2 MS and 1 Z) for a 3020, IH 504 and a Ferguson TO 20, and everyone came back ready to install. Slapped them in and didn't need to adjust.
 

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