Everything you have posted so far points to a fuel problem. The presence of spark when it quits would indicate that the ignition system is working OK. However, rechecking the points gap would be recommended at this point - just to be sure. The fact that choking will get you back to the shop indicates that it is going excessively lean under load. To me, this would indicate a restriction in the fuel path somehow. Restricted needle and seat, clogged main jet, or something restricting fuel delivery. I would check the level in the float chamber when it quits. Too low would mean it is not getting fuel from the tank, pump, or lines. If it is at the correct level, restriction has to be internal to the carburetor. As to a sticking exhaust valve, I would think that there may be a possibility there, BUT a sticking valve would have one major effect. That would be loss of compression accompanied by loss of vacuum to draw fuel through the fuel system. Therefore, in that case, choking would amplify the problem. Less vacuum, less fuel. Should be easily diagnosed with a vacuum gauge. Taking it to the shop might get it fixed, but might also end you up with a big bill and not fixed anyways. I think you are on the right track in looking at the fuel system. I would first do some checking with a vacuum gauge and a fuel pressure gauge. See what is happening when it quits. After that, it might be a good idea to take the carb completely apart and clean out everything meticulously. Or, in the worst case, replace the carb. Also, as a thought, anything that you can prove is NOT the problem is a step closer to what IS the problem.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. 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 - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
