First Gen Headlight Warning light oddity

[george0fthejungle]

Hi,

 

My 83 has a strange quirk. The headlight warning LCD and red warning light will come on. I checked the manual which says that indicates a headlamp failure, except my headlight is just fine, low beam and high beam. I have gotten off the bike to check them, as well as being able to see their reflection on cars/road signs ahead of me.

 

If I flip on the high beam, leave it on for a sec then back off, the LCD indicator and red light will go away.

 

Sometimes I dont see the false error for days, other times it will do it a dozen times in my one hour ride home.

 

Has anyone else seen this?

 

Paul

[Condor]

Hi,

 

My 83 has a strange quirk. The headlight warning LCD and red warning light will come on. I checked the manual which says that indicates a headlamp failure, except my headlight is just fine, low beam and high beam. I have gotten off the bike to check them, as well as being able to see their reflection on cars/road signs ahead of me.

 

If I flip on the high beam, leave it on for a sec then back off, the LCD indicator and red light will go away.

 

Sometimes I dont see the false error for days, other times it will do it a dozen times in my one hour ride home.

 

Has anyone else seen this?

 

Paul

 

Yep. Your CM needs to be resoldered. There are a couple of threads, and I believe?? a write up on the repair in the Tech Libarary. Had the same problem with my '83. I was going to do the repair, but found a nicer dash that I R&R'd and the problem went away.

If you can't find it on this board here's a LINK to a repair artical on the web

[86er]

Mine had the red light and indicator on for a long time. I fixed the flashing red light with a piece of black tape for a while. After my crash, while I had access to the computer board, I pulled the board out to re-solder it. It actually had one corner broken off. It was hard to tell, on one trace, where it went. I've re-soldered it twice and had to create some jumpers for the crack, now I get the red light/headlight indicator any time the high beam is on. I'll live with that 'cause it ain't worth going back in just for that.

 

Here is where the board comes from,

http://i38.photobucket.com/albums/e138/TMagEnterprises/Extra%20Junk/Venture%20Projects/100_1353.jpg

 

http://i38.photobucket.com/albums/e138/TMagEnterprises/Extra%20Junk/Venture%20Projects/100_1354.jpg

 

 

http://i38.photobucket.com/albums/e138/TMagEnterprises/Extra%20Junk/Venture%20Projects/100_1356.jpg

 

This is a jumper across the crack on the back of the board.

http://i38.photobucket.com/albums/e138/TMagEnterprises/Extra%20Junk/Venture%20Projects/100_1360.jpg

 

It's hard to tell, (on the right side) but I scraped off the solder resist, laid a few strands of copper wire across the crack and soldered it.

http://i38.photobucket.com/albums/e138/TMagEnterprises/Extra%20Junk/Venture%20Projects/100_1357.jpg

 

I had to put another jumper on top.

http://i38.photobucket.com/albums/e138/TMagEnterprises/Extra%20Junk/Venture%20Projects/100_1359.jpg

(Before anyone cracks wise, No, I did not use Plastic Wood on this project!) But I did use Devcon Plastic Welder to hold the board together and it appears not to be conductive.

 

Good luck with yours!