79 GS750E is eating light bulbs?

[Yura]

what can cause that? my headlight goes out so dose my tail light... what can cause that?

[GavinJuice]

low voltage, causing them to pull higher amps, aka HEAT. You probably have a poor ground or connection somewhere. I would start by checking the voltage to both bulbs and seeing what you've got compared to voltage across your battery terminals.

[simon kuether]

My 'S was doing that and I found that the r/r was not grounded directly to the negative of the batteryConnect him up and problem solved.Cheers,Simon.

[tkent02]

High voltage, not low will push too many amps through the bulbs,
R/R not working correctly or more likely just a bad ground or wire connection someplace.

[Clone]

R/R putting out too much voltage killed my lights.

[old school]

same as clone got a new at elctrosport problem solved $96.00 +or- a couple bucks

[Yura]

Thank You guys, I will start with checking the ground...
I'm a newby to these bikes.... so whats R/R?

[simon kuether]

It's your Rectifier/Regulator.It should have a ground wire coming from it to your frame.If so,connect it to your battery negative instead.Cheers,Simon.

[Quandryron]

I had the same problem a few years back. I went through ALL of the wires and anything that I could I soldered. I was still blowing headlights. It's a freaky feeling riding home at night on your turn signals. Then I replaced the pigtail and that seemed to fix the issue. Out of paranoia I also changed it from that big 9in? bulb to the conversion kit which takes the small H10? bulb. Those are a lot easier to carry spares of. I picked up the conversion kit off of Ebay at Rice Paddy Motors in Columbus, Oh. It has worked like a charm so far and I haven't replaced a bulb yet. Been 2 yrs. Good Luck. Electrical demons seem to be the hardest to excorcise.

[BassCliff]

Greetings and Salutations!!

Hi Mr. Yura,

Did you get your carb hoses straightened out?

I encourage you to clean every electrical connection, ground connection, fusebox, etc in your entire wiring harness from the headlight bucket to the tail light. Go through the Stator Papers to test your charging system. Check out the links below, read all the related material so that you gain a knowledgeable overview of your motorcycle's systems and possible issues. You have a 30 year old bike and there are probably a lot of little things that need attention. Download a manual from my site. Get back to us when you have a question.

I do believe I have NOT given you the "official" unofficial mega-welcome. So let me roll out the welcome mat for you...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff