The issue may not be the key. If it will crank with the key in the start position, and will run (if it fires when the key is turned to run) in the run position, it may be OK. Most key switches maintain the ignition connection when starting because it is not a separate switching action. The ignition coil may not be firing while cranking because of low voltage to it. Low voltage can be caused by a weak battery. A set of too small battery cables (00gauge is needed, including ground strap) a out of spec ballast resistor (if it has one) a poor coil 12 v coil with no external resistor required used with a ballast resistor. or combination's of these issues. A 6 volt coil needs at least five volts when cranking (it will have an external resistor) a full 12v coil (No resistor required) needs at least 10 volts when cranking. A 12v coil that needs a resistor is just like a six volt coil in reality, and needs 5v at least when cranking. If there is voltage when cranking, it is the amount that is an issue. If none, it might be the key. Good luck, JimN
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 - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
... [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.