2003 WR450 headlight questions
Posted June 08, 2007 - 07:53 AM
my buddy has an '04 and he noticed my headlight switch that he doesn't have. so, this brought up an idea:
can I bypass this switch and direct wire the low beams to be on all the time, and then use the switch for the high beams? maybe the effect is that then my low beam AND high beam would be on together, in only the rare occassion that I use the high beam. will this burn the headlight? can the switch handle the high beam current? If it can work, do I need to put a relay in for the high beam?
--> what I'm really looking to do is DS the bike at minimal cost and space. those hi/low/kill switches seem kinda big, so if I can use the smaller one I have, then saaaaaaaaweeeet!
Posted June 11, 2007 - 04:28 AM
Posted June 11, 2007 - 06:04 AM
Wire up the low beam to be on continuous, but use a relay to turn it off when the hi beam turns on.
Also, remember that your headlight is AC, so use the correct relay.
Posted June 21, 2007 - 07:15 AM
Posted June 21, 2007 - 08:25 PM
Posted June 22, 2007 - 05:10 AM
What you would need to do is use the DC wire to power everything in the switch and let the DC headlight switch power control a relay for the AC headlight power. The AC power for the headlight would go to "COM" (common) on the relay, lo beam to "NC" (normally closed) and hi beam to "NO" (normally open). - The open or closed position is really dependant on what the manufacturer considers normal; coil energized or not -. Either way, if the lo beam is NC it will be on until you energize the coil, or turn on the hi beam switch, at which time the NC opens, turning off the low beam, and the NO closes, turning on the hi beam.
I haven't done it yet, but it makes sense to isolate the AC and DC. Another TT'er sent me a schematic which I will send to you if you PM me an email address.