If its a 12 volt system and has a true 12 volt coil YOU DO NOT USE A BALLAST OR THE SPARK WILL BE VERY WEAK.........(Toss the ballast)
A true 12 volt coil may be labeled "12 volt" orrrrrrrrrrrrr "12 volt NOT for use with ballast resistor" or "12 volt no ballast required"
A coil labeled "6 volts" or "12 volts for use with Ballast resistor" is in reality a 6 volt coil AND DOES NEED A BALLAST ON A 12 VOLT SYSTEM or it will overheat plus burn points quickly
Contrary to Billy Bob and Bubbas belief those coils DO NOTTTT I REPEAT NOTTTTTTTT HAVE A STAND ALONE DISCRETE BALLAST RESISTOR TUCKED AWAY SOMEWHERE INSIDE THE CAN.
Many typical old tractor 12 volt coils will have a LV primary resistance (measured between + and - terminals) of around 2.5 to under 4 ohms
If you have a 12 volt tractor and a 12 volt coil DO NOT USE A BALLAST OR THE SPARKS VERY WEAK
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 - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
... [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.
