The Model M and MT tractors were originally equipped with 6 volt batteries and all have a positive ground electrical system.
We have 6 volt batteries on "Sparky" our 51M and "Mac", "Rusty", and "Sam" all three of our 51MTs.
Agree with M-Man that "BTW - BAD condensers are common as dirt now a day's so it's never a bad idea to swap it out when one is running rough even if it's new."
We are constantly replacing condensers on "Rusty" one of our MTs.
Take a look at the photo below.
Also agree with RBoots "Champion spark plugs?" and "Newer cap?".
You might consider Autolite spark plugs.
Take a look at the photos below.
You might also consider checking the distributor cap.
Take a look at the photo below.
"Mac" one of our MTs was running rough and eventually died in the hay field.
Replaced the cap and rotor and solved the problem.
Also agree with brent zappe that "if coil gets hot and the engine starts to miss the coil is no good."
We have replaced the coils on all six of our John Deere Dubuque tractors.
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Today's Featured Article - Women and Tractors, A Woman's Touch - by Teri Burkholder. I thought I would give you a little background on how I got myself hooked on tractors and their restoration. My family is a very "crafty" bunch of people. By crafty I mean good with crafts!! My Dad is a retired industrial engineer from Bucyrus Erie which made big shovels for excavating and he is also a wonderful wood worker. My mom and my "guardian angel" has had her own ceramic shop for 30 years and is an excellent painter. With these skills always active in our house it was hard not t
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