Posted by Earl-IL on February 23, 2013 at 12:49:52 from (50.81.209.158):
In Reply to: John Deere A magneto posted by MikeinInd on February 22, 2013 at 21:29:06:
You said you cleaned the points? Point contact finish needs to be as good as you can make it. The 2 surface on the points need to have a mirror finish,not a filed or coarse sand paper finish.Check this surface with a magnify glass. Polish with 1000 grit. Some of the new points we get today are miss aligned and poor finish. check the spring terminal in the cap for corrosion. Pay close attention to the screws in the rotor are not sticking up higher than the carbon in the middle of the rotor and rubbing on the cap to rotor contact. Is the rotor tight on the shaft? It can't flop around. I have had the point pin worn to where the points will slide ,before they break.This throws the timing to the edge gap off. I have new pins. Some times you will need to gap points to .016 -- .017. If your mag has a kill button disconnect & test.
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