Problem with lights when i apply my brakes


Information and questions on GL1200 Goldwings (1984-1987)
  • Sponsored Links
rmathenia44
Posts: 12
Joined: Thu Aug 15, 2013 10:58 pm
Location: Pittsburg, California 94565
Motorcycle: 1986 GL1200 1 interstate
Contact:

Problem with lights when i apply my brakes

Postby rmathenia44 » Thu Jul 16, 2015 10:11 pm



when i apply my brakes my lights dash and all demes, even after in installed a poorboy alternator.
also my horn want sound unless i rase my rpm"s. Needs help...thanks. :?



User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Problem with lights when i apply my brakes

Postby virgilmobile » Thu Jul 16, 2015 10:34 pm

Voltage or current drop to switched ignition...Do you have a digital volt meter for testing?
I'll can describe how I would trace it to locate exactly where your having problems and how to fix it...I'm kinda good at this stuff. :mrgreen:

rmathenia44
Posts: 12
Joined: Thu Aug 15, 2013 10:58 pm
Location: Pittsburg, California 94565
Motorcycle: 1986 GL1200 1 interstate
Contact:

Re: Problem with lights when i apply my brakes

Postby rmathenia44 » Thu Jul 16, 2015 11:55 pm

yes i have a meter i would be thankful for your help!!!

User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Problem with lights when i apply my brakes

Postby virgilmobile » Fri Jul 17, 2015 9:26 am

Great.If I loose you in this,just ask.I do make assumptions that your farmiliar with the basic wiring.
With your DVM set to read very small voltages,eg less than 2 volts.
Pick a lamp that dims that you can get to its wires.Identify the one with volts and the ground(usually green).
Get the bike where the lights are dimming.
Even if you have to have another hand to operate or toggle till the dimming occures.
At this point,with your meter,probe the lead connector on the negative battery post.
I am very specific on these points.I do mean the lead mount,not the bolt,connector or something close.
The other meter lead is probed at the dimming lamp ground wire.As close to the lamp as possible.
While the lamp is dimming,What,if any,is the voltage.
I'm expecting less than 0.02 volts.
Do exactly the same for the positive post to the hot wire.Is there any voltage drop on either the ground path or positive path.
The positive path should have a drop of no more than 0.5 volts.




Return to “GL1200 Information & Questions”




Who is online

Users browsing this forum: Yahoo Slurp [Bot] and 3 guests