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Old 10-09-2009, 04:47 PM
FlyJSH FlyJSH is offline
Motorized Bicycle Member
Join Date: Feb 2009
Location: Houston, TX
Posts: 40
Default I thought I was being smart

I am confused.

I thought I was being smart. I wanted to run lights off the engine, but I have had trouble running off the white wire. So, I thought, why not put another winding on top of the stock coils? This additional coil would not be electrically connected to the stock wires. So, I put about 250 windings on, fired up the engine, and measured 4-6 vac. Looks good. Connected the new coil to an LED tail light. Worked! WooHOOO! I am loving it.

But then I attached an incandescent bulb... and the engine died just like hitting the kill switch. I tried it repeatedly with the same results.

So, my question is Why? Why does a coil that is not connected to the engine's wires OR the ground kill the spark?
You gotta be smarter than the tool you use.
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