My UB has been sitting for a few years. I took the carb apart and soaked it in carb cleaner for a few days, the put it back together with a new gasket kit. I also Cleaned the fuel tank and lined it. Got it started today, but it runs super rich with both the idle and load screw all the way in. Any advice on what to look for? I thought maybe the air cleaner was plugged up so I removed the hose from the carb to the air cleaner with no change.
- Thread starter chris_m78
- Start date
These guys will correct me if I am wrong, but is that carburetor one of those that the venturi can be put in upside down?
(I ran into that on an Allis Chalmers once.)
Also, did you make your own gasket, or use one from a kit? The bowl has to vent to the inlet somewhere, and if the hole is not in the gasket it won't.
Also, are you certain the main needle actually goes into the jet in the bottom of the carb and is not down beside it?
It is a TSX 67 carburetor isn't it? (Well, the plain U used a TSX 67. I don't know what came on a UB.)
(I ran into that on an Allis Chalmers once.)
Also, did you make your own gasket, or use one from a kit? The bowl has to vent to the inlet somewhere, and if the hole is not in the gasket it won't.
Also, are you certain the main needle actually goes into the jet in the bottom of the carb and is not down beside it?
It is a TSX 67 carburetor isn't it? (Well, the plain U used a TSX 67. I don't know what came on a UB.)
Duey C
Member
- Location
- central MN
And I wonder about the needle and seat for the float if free and half-ways in decent shape.
Will some carb cleaners destroy viton tipped needles?
I'd like to know when you nail the problem down.
Wouldn't plugged carb ports cause super lean conditions?
Just thinking out loud.
I have fuel-flow problems on the UTS here. A different story.
This post was edited by Duey C on 08/21/2022 at 11:37 pm.
Will some carb cleaners destroy viton tipped needles?
I'd like to know when you nail the problem down.
Wouldn't plugged carb ports cause super lean conditions?
Just thinking out loud.
I have fuel-flow problems on the UTS here. A different story.
This post was edited by Duey C on 08/21/2022 at 11:37 pm.
Similar threads
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy