If the screws were tightened down with the ventura upside down, it may have warped the top so the 2 pieces don't tighten down on the gasket in the center.
If that happened the passage that draws up idle fuel will not seal, and will not draw up steady and sufficient idle mixture.
If it's warped it can be taken apart and filed flat.
When setting the idle mixture, remember on that carb turning the idle mixture screw in richens the mix, out leans it. You are adjusting air bleed, not fuel flow. The adjustment is minimal, and is only adjustable with the engine at slow idle, 500RPM or less. If idled down, and the screw makes no difference, there is a problem with the idle circuit.
Keep in mind the carb function is totally dependent on all other aspects of the engine. If the compression is low, the ignition system is not in tune, the carb can't function properly.
Is the fuel fresh, clean and water free? How is the air cleaner? There is a wire mesh inside that needs periodic cleaning, and is often forgotten. How is the oil? If it is fuel contaminated it will influence the carb adjustment.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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. [ About Us ]
Today's Featured Article - Talk of the Town: The Saga of Grandpa's Tractor - by The following saga is from the Tractor Talk Discussion Forum. Someone. The saga starts with the following message: Hey guys I have a decision to make. I know what you all will probably suggest and it will probably agree with me way down inside, but here it is. I have a picture blown up and framed in my "tractor room" of a Farmall M. It was my Grandpa's tractor, of which whom I never got to meet. He froze to death getting this tractor out of the barn to pull a truck out of the ditch before I was born. Anyway my dad and aunt had to sell it at the auction,
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
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.