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H-4 Magneto Questions

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Pappy

08-02-2005 19:01:28

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I'm not real familiar with the H-4 magneto. I am trying to get one restored. It will put out a spark but it is only about 1/8 inch long and is fat and orange. It seems to spark consistently, but I want a hotter blue spark. The points look good, but I'm not sure about the condenser. It looks old. What is my first step? What is most likely the problem? It does seem to spark consistently when I rotate it with my air impact wrench. Thanks for your help!!!

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R-cubed

08-02-2005 20:28:29

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Re: H-4 Magneto Questions in reply to Pappy, 08-02-2005 19:01:28

Try setting the points a few thousands closer or wider. The best spark is achieved when they break contact at the moment of maximum magnetic flux so break timing is critical. Changing the gap changes the timing a little.

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Pappy

08-02-2005 21:29:23

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Re: H-4 Magneto Questions in reply to R-cubed, 08-02-2005 20:28:29

Thanks----I just discovered something. The point gap spec is 13. I read it three times and set them to 15. Maybe this will help. Thanks!!

This gettin' old is gettin' old !!

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El Toro

08-03-2005 03:36:56

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Re: H-4 Magneto Questions in reply to Pappy, 08-02-2005 21:29:23

The coil may be getting weak too. Hal

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