Clinician
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Fear leads to anger. Anger leads to stress. Stress leads to doobies. And doobies lead to twinkies
Posts: 43
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Joined: May 15, 2010 11:29:24 GMT -6
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Post by scooteraddict on Aug 3, 2012 19:27:59 GMT -6
Well I finally broke down and bought a HID light kit to install for my MC250B. When I went to check which wires are for the high and low beams, I found something interesting. With the bike off and key on, the small light above the regular lights read at 12.4, what the battery would be. With the bike running, 15+ volts.
Now I would consider that normal but what I found out is that with the bike running and supplying power to the head lights, I was only getting about 9 volts.
With doing some calculations, with 13.5 volts as the voltage and 35 watts for the lamp, the resistance that the bulb would be 5.285 ohm's. Now if I took the resistance and multiply it with say the 9.6 volts that I was reading, I would only get about 17 watts of light output. No wonder that light are not very bright.
Further along as I was monitoring the voltage, the fan kicked in and found that the voltage to the lights went to 12 volts. Go figure.
Although I didn't get a chance to finish the install, I did test one light and WHAT A DIFFERENCE!
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Post by Bashan on Aug 6, 2012 7:36:08 GMT -6
Interesting....that 15+ kind of concerns me. That would have to be what the charging system is putting out since there's no way to amplify voltage in a scooter. Don't you think that's a little high? Rich
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Doc's Anything Goes
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Posts: 2,739
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Joined: Oct 23, 2010 19:29:21 GMT -6
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Post by tvnacman on Aug 6, 2012 12:25:55 GMT -6
Resistance changes with temp .
John
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