It's clearly not getting enough gas for the proper gas/air ratio.
First be sure the problem isn't too much air. Make sure there are no leaks in the manifold - rust holes, or bad gaskets, or even the carb itself. (with the engine idling - an unlit propane torch held near the suspected areas can highlight a leak)
Assuming it's all tight...
The fact that it won't idle unless it's choked means it's not getting enough gas through the carb, but IS getting enough TO the carb to idle.
It dies when you rev it, so it's possible it's not getting enough gas TO the carb for high rpm's but I'd take that as a separate problem for now.
You know there's a problem IN the carb, and fixing that may very likely solve both low and high rev problems.
Cleaning the insides of the carb is important - but not all that helpful if you don't get the very small passageways. I'm guessing you missed something when you cleaned it.
You didn't mention the mixture screws... I'm assuming you've tried adjusting them. If not, do that before doing anything else.
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 - The Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
... [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.
