Here is the deal. Are you finding that when you adjust the main jet to the point it eliminates the smoke once the engine is up to speed or traveling down a level road you now have a stumble when you open the throttle quickly? If so it is just the curse of a tractor carburetor with NO accelerator pump, a fairly long up draft intake manifold runner and the intake manifold that has less inherent heat then say a V8 where the manifold sets right on top of the engine. It has been my finding that IN SOME CASES if you want your plugs to burn clean you have to lean the main jet down and live with a bit of stumble. It can help to set your ignition timing advanced to the point that you are starting to hear some ..pinging.. or pre-detonation when the tractor is up to full operating temps and is under a fair load like going up a steep hill in road gear, then back it off 2 or 3 degrees. Which does bring us to some other points. Does it have a thermostat in it and is the engine coming up to the proper temp? What are you doing with the tractor during the test or run period? If you are only putting around a bit or taking it down the road a half mile you are not really giving it any kind of a test. As Stevie and Jim are pointing out these tractors were designed to be worked and not necessarily make the most economical use of the fuel. One last thing, do you or have you been taught that a machine with a manual choke should be ..warmed up.. a minute or two with some amount of choke applied say a 1/4 to a third? I am used to Farmalls and unless extremely cold they need no choke to run after 15 to 20 seconds. Only if you start them and almost immediately put them in gear and try to move then yes, a quick out and back in of the choke rod will keep it going. If your tractor can stay running at a 1/4 throttle with no choke during a minute or two warm up than DO NOT USE IT.
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 - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle?
... [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.
