I think my point is a lot of people don't realize that the M and SM carbs are different, that includes the CaseIH dealer. So I suspect that the parts used in yours were for an M. Not knowing the difference, I cleaned and put the correct kit in my SH, but I did not touch the main jet needle and jet. I adjusted it the way I always adjusted an H. Worked fine until I started up a slight incline with no load -- it wasn't getting enough fuel -- that is when I read the operators manual and found the 5 turns out thing. The SM and SH carbs are also different, but I don't think a correct SM carb will pull anything with the needle 2.5 turns out. The SM I have is undergoing restoration. It came with an M carb. I have a used SM carb for it that has been cleaned and rebuilt, I don't know what the main jet is. If I ever finish the thing I will do some experimenting and adjust it as is correct for an H and M. If it is ok, I will try to find a jet and screw for a SM. As you say 5 turns out with a M main jet is way too rich.
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 - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
... [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.
