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Old 07-15-2010, 10:37 PM
Nougat Nougat is offline
Motorized Bicycle Elite Member
Join Date: Nov 2009
Location: Montgomery, IL
Posts: 1,332
Default Re: Magneto-powered headlights

The trouble is that pulling anything over about 3W from the white wire is going to impact CDI performance. This doesn't leave a whole lot of juice to power a bulb.

Someone on eBay sells an add-on mag coil that fits next to the existing coil, and then you can run all your electrical off of that. I really like that idea, but the setup for sale is prohibitively expensive. If I were an electronics geek, I would try to engineer something like that myself, and get it manufactured cheaply enough to sell at a reasonable price.
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