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Author  [Modern View]

03-07-2018 16:55:04

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when mag is rotated I get a spark at points sometimes other times I get spark around coil at different points is this normal

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03-07-2018 18:51:44

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 Re: fmjmagneto in reply to johnmetcalf, 03-07-2018 16:55:04  
One should NEVER rotate a mag/cause it to spark without having the secondary terminals shorted to ground or connected to spark gaps.

Doing so is simply asking for coil failure or "carbon tracking" from spark finding it's way to ground across the cap or rotor.

Same thing applies to battery ignition systems.

The really old mags had internal spark gaps to save the coil in case such a thing was done, or a spark plug wire fell off.

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03-18-2018 10:33:09

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 Re: fmjmagneto in reply to Bob, 03-07-2018 18:51:44  
Exactly! I have been telling this to dozens of people. Seems like no one believes this except us. Number one response, "I have been doing this for forty years and never had a problem....................."

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03-07-2018 17:31:34

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 Re: fmjmagneto in reply to johnmetcalf, 03-07-2018 16:55:04  
Sparking at the points means the points are dirty and need cleaned or the condenser is going bad. The only place the coil should spark is at the terminal in the center of the coil. If the coil has cracks in it or is soft and sticky it is bad.

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