I'm the one who's tractor would die a slow death in about an hour's running... After doing everything except change the air in all four tires. With your guidance, I went to PepBoys and got a new coil. I gather in 1957 this F-40 came with a 6v system but sometime it was switched out to 12v. Without looking at the coil on the tractor, I bought an internal resistor coil...when, of course, I needed an external resistor coil. ...back to town. I changed the coil and BINGO: it runs great. It seemed (wishful thinking?) to start quicker and idle smoother. I ran it for about an hour doing light duty and it didn't falter. So far, I got a new E German carb, points/condensor/cap...timed it by eyeball...and this $30 coil. I can't believe in 2006 I can leave something sit out for a decade, no more than 1/2 a tank gas ever and have it willingly come back for more work whenever I hit the starter. I can afford something newer...but how can you give up on an old horse who's willing to pull whenever you ask?! Thanks all for all your help. I didn't change the coil before you coached me to - even tho' I thought about it - because my M-F dealer (30+yrs...) didn't think it could have been it. Thanks again. j i m
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