If it now has a 12 volt battery but its still the old 6 volt coil, you can add an external series voltage dropping (12 to 6) series ballast resistor (typical values in the 1.2 to 2 ohms)after the ign switch before and ahead of the coil so it drops 6 volts leaving 6 on the coil as a 6 volt coil was designed for, orrrrrrr toss the coil and use a 12 volt rated coil that requires no ballast....... "12 volts not for use with ballast" or "12 volts no ballast required" or simply "12 volts" are typical labels on that coil
The Voltage Regulator (if it used one instead of a cutout relay) and genny are for a 6 volt system so you cant simply add a resistor to fix all that. You can get a 12 volt genny and a 12 volt VR or convert to a 12 volt alternator.
If you change from Pos to Neg ground (like most alternators require) the ammeter leads need swapped or else it will read bass ackwards.
Also if its a coil ignition (NOT a Mag) and you change battery polarity the coil leads also need swapped. Dont let anyone tell you ignition coil polarity dont matter and you can wire it either way, its true you can still get a spark if its wired at the wrong polarity, but the system works best and is more efficient if the coil polarity is corect..
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 - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
... [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.
