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Old 10-01-2012, 07:06 PM   #1
ABHooligan OP
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Another How Do I,,,,,,, thread

I installed a Buell XB headlight (two small lights in one housing-one low, one high beam). Later I converted them to HID and love the light output. However, when switching from lo to high beam (or vice-versa) there is a delay of several seconds while the bulb lights up, so I'm plunged into the dark for a bit there. I know there has to be a way to wire them together, so that when the hi beam is on, the lo stays on also. But it needs a 'valve' or switch of some kind to prevent the hi lighting when just the lo is on. Am I making sense here?

Do I need a diode installed in there somewhere? The HID's are 35W. The bike is, ahem, a KLR. If I need a diode, what size? I am capable of cutting, soldering, and heat-shrinking, but I'm not an electrical engineer-type guy. I would like to keep things as simple as possible, to reduce the risk of failure on the road. Thanks a bunch.
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Old 10-02-2012, 06:47 AM   #2
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Rewire the Low beam so that it is not turned off by the headlight switch when switching to High beam. Then use the switch as an on/off for the high beam.

Another fix would be to leave the Low beam wiring as-is. Then add a dedicated switch for the High beam and run it through a small relay.
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Old 10-02-2012, 08:55 AM   #3
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You can use a diode as well. I'm not smart enough to explain how but thats what an electrical engineer told me when I asked the same question.
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Old 10-02-2012, 10:09 AM   #4
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some variation on this relay and diode circuit might work
very clever and uses a standard relay and common diodes you can get at RadioShack, etc
Old VW's used a headlight relay that latched mechanically, that might work too
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Old 10-02-2012, 11:47 AM   #5
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Too late but, you'd have been served well with a Bi-xenon conversion...if it would fit. One bulb does both high and low so the only delay is on bike startup. A solenoid shields and unshields the high beam part of the reflector from the arc.
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Don't be the guy who needs to pee on the fence to figure out that it's electrified.
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