Try replacing the coil. YT (This site) has them. I put a new coil and condensor in a F-20 mag (Model F-4) and got a 3/8 inch spark.
I used a method described here several years ago. Find a 3/8 inch drive socket that fits the nut on the "Front" end of the armiture. Cut a 3/8 inch drive socket extension in half. Put the male end in a drill and use that and the socket to turn the armiture. Hold one of your spark plug wires near the base as you spin it. Move the spark plug wire away from the base as you spin it and see how wide a gap it will jump. As I said above, I got mine to jump 3/8 of an inch.
One thing extra that I did was to drill a small hole in the inside of the mag cover, connected a wire to the condensor, threaded this wire through the small hole and connected it to a one-wire "Kill" switch from a H or M. This makes it much easier to kill the engine, especially if the original grounding mechanism does not function.
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]
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.
