Posted by Janicholson on July 15, 2020 at 14:44:28 from (24.240.46.228):
In Reply to: Farmall m idles high posted by jkappen on July 15, 2020 at 14:20:30:
Farmalls in general (letter in particular) have a "do nothing" zone from the far position of the hand lever to about a third of the way to wide open position. If the tractor will run OK with the lever at wide open, and will slow down to some speed less then full speed, then quits running when adjusted slower, there is two possible items to work on. The first is the idle stop screw and idle richness adjustment. these are located in the top 1/2 of the carb. The Idle speed stop screw is closest to the tube from the governor, and pushes against the lever inside the connection to limit how far the throttle plate closes. The idle mixture screw is at an angle to the right of that. It is an air bleed screw, the farther out it is the leaner it gets. The idle mixture screw is adjusted so the speed (at idle) is as high as it will go, when the speed screw is adjusted to the correct idle speed. They are played against one another to achieve this best mixture at a nice slow idle (about 500 RPM) The other issue is that it stops. if nothing woll make it run slowly, and the above screws are not doing anything, there is a plugged up idle circuit in the carb. Jim
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 - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
... [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.
