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Old 11-30-2013, 09:41 AM   #1
Navy CWO OP
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Question Aux Lighting Hook-up Problem

I have two LED lights I want to add to my '93 R100RT to increase my visibility.
I also have a stock BMW rocker switch on the panel for energizing them.

I mounted the lights on the "crash" bar and hooked them up to the coil so they would only operate when the ignition is on so I couldn't run down the battery if I neglected to turn them off after a ride. Lights work great;
but if I turn them on when the bike is running, it dies as soon as I turn the aux lights on. I must have it hooked up to the wrong terminal. I would appreciate any suggestions or guidence!

Thanks!
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Old 11-30-2013, 10:02 AM   #2
craydds
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Quote:
Originally Posted by Navy CWO View Post
I have two LED lights I want to add to my '93 R100RT to increase my visibility.
I also have a stock BMW rocker switch on the panel for energizing them.

I mounted the lights on the "crash" bar and hooked them up to the coil so they would only operate when the ignition is on so I couldn't run down the battery if I neglected to turn them off after a ride. Lights work great;
but if I turn them on when the bike is running, it dies as soon as I turn the aux lights on. I must have it hooked up to the wrong terminal. I would appreciate any suggestions or guidence!

Thanks!
Look at the stuff from easterbeaver, http://easternbeaver.com/Main/Wiring...ring_kits.html . Easy plug-n-play wiring for aux lights, etc. The "secret" is using a relay - the key is on, the hot wire from the coil activates the relay (turns the relay ON) and the lights are powered directly off the battey; when the key is off, the relay is OFF, no power to the lights. I have several accessories wired up this way. Also look at http://easternbeaver.com/Main/Wiring...fuseboxes.html .
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craydds screwed with this post 11-30-2013 at 10:07 AM Reason: stuff
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Old 11-30-2013, 10:13 AM   #3
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If applicable, RTV the circled slot left open if you remove the tool kit -- otherwise, water infiltration off the rear tire may cause corrosion.
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Old 11-30-2013, 10:41 AM   #4
craydds
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Originally Posted by Navy CWO View Post
I also have a stock BMW rocker switch on the panel for energizing them.
Centech also has relays and fuse panels, http://www.centechwire.com/Relay-Wiring-Kit-AP-170R.htm, and http://www.centechwire.com/Auxiliary...Panel-AP-1.htm . The BMW rocker switch can activate a relay which will connect the lights directly to battery current.
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Old 11-30-2013, 10:53 AM   #5
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You've set up a typical dirt bike kill switch...grounding the coils when you turn the lights on.
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Old 11-30-2013, 11:46 AM   #6
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Thanks guys!! I think I'll go with the relay set-up even though
the lights don't draw much current. I did suspect I had introduced a "kill" switch into the equation by somehow grounding the coil! I appreciate the assistance.

I guess I didn't think it completely through when I worked out my wiring plan.
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Old 11-30-2013, 01:29 PM   #7
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I'd not wire it to the kill switch (on the handlebar) .. but to the ignition key switch. Unless that is what you mean by kill switch...

If you look at the wiring diagram then maybe the horn circuit would be 'good'. Think here you need the tail light on at the same time .. so you'd have to figure that out too, or maybe have a separate LED rear light as well?
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