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Buell Motorcycle Forum » Old School Buell » S2 Thunderbolt » Archive through September 01, 2008 » Best place to wire up a GPS, Lights and other stuff « Previous Next »

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F_skinner
Posted on Saturday, July 12, 2008 - 10:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am looking at putting some additional lights on the front of my S2T. Can I just wire them up to the headlight? I forget what Ratbuell told me he did.

Also does anyone have a suggestion on the best place to wire a GPS up at? I added a 12 volt accessory plug but will run that to the battery so I can power a air pump with out the bike being on. I already have my heated gloves wired directly to the battery and did not want to add anything else.

Thanks for any help... Frank
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Ratbuell
Posted on Sunday, July 13, 2008 - 10:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Frank - the lights I got came with a relay, and a switch. I wired them up thusly:

Heavy gauge wires from relay to battery, and relay outputs to lights. Relay and inline fuse are mounted under my tailsection, above the ignition box.

Switched wire to relay is fed by the low beam lead - when the low beam is on, the relay is on. This is the "choice" wire - you have the choice of having the lights on with low beam, high beam (just use the high beam wire), or with ignition (you can use the gauge lighting wire as a source if you want to go that way). This wire does not pull current, so you can use a "small" circuit to feed it.

I put the PIAA switch in this line as well, so I can override the lights and turn them off with low beam (for situations like the ride home from the Tiki Bar when I was cooking the poor guy in front of me - they point a little higher riding 2-up, whoops). I zip tied the switch to the left fairing spider support - out of the way, but I can reach if needed with my left hand.

Initially I had the relay fed by the gauge lighting so they were hot any time the ignition was on, but I've found that I rarely need the highbeam anymore for visibility. So, for more "flash to pass" noticability, I wired them to the low beam where I do 99% of my riding now. And the lights flashing, effectively, up-and-down as well as bright/dim, makes flash-to-pass and "hey, look at me" flashes much more visible.

For the GPS, they're very low-draw (usually in milliamps), so I'd be comfortable using the gauge lighting as a source. That also makes it switched so you don't have to worry about a mounted GPS draining your battery.
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F_skinner
Posted on Sunday, July 13, 2008 - 12:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Joe, just the info I needed, thanks... Frank
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F_skinner
Posted on Thursday, July 17, 2008 - 11:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well, I decided to install a Centech AP-2 in order to add electrical stuff to the bike. The assembly was pretty straight forward.

The actual unit without the cover. It is really small.




The wiring harness.




I attached the relay that switches power to the accessories that you do not want on when the bike is not on. The relay is attached right next to the battery.




The only part I did not want to do is drilling holes in the tail section but I did it after a couple of beers. I just lifted the material and drilled. I will put something in the holes not being used at the time to make sure water does not fly up thru them.




The unit installed in the tail section of the S2. I removed the mounting studs of the unit and attached velcro on the bottom and it stays secure in the tail section with no problem.




The unit has eight outputs for both power and grounds. It is connected directly to the battery and the relay system. The relay is turned on and off via the ignition system. It can handle a max of 60 amps...

More to follow. I need to rebuild the front brake first...

Frank
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