Electrical

C. R. Mead · Post by **C. R. Mead** » Tue Jul 10, 2018 11:57 am

My 77 GL1000 K2 has never had any electrical problems in the past, but yesterday when I fired her up to go for a ride, the head light, tail light, and all 4 turn signals were on, but very dim and the turn signals would not flash. Checked battery, new 2 months ago, showed 12 volts at 86% charge. What do I check next?

DaveO430 · Post by **DaveO430** » Tue Jul 10, 2018 12:05 pm

Probably something to do with the reserve lighting system which is kind of a mysterious thing known only by Japanese monks or the main ground is bad, the one bolted to the upper ignition coil bolt.

C. R. Mead · Post by **C. R. Mead** » Tue Jul 10, 2018 12:11 pm

How would I go about troubleshooting this problem?

DaveO430 · Post by **DaveO430** » Tue Jul 10, 2018 12:29 pm

Go here and scroll about 1/2 way down. http://www.randakksblog.com/recommendat ... -a-gl1000/

C. R. Mead · Post by **C. R. Mead** » Tue Jul 10, 2018 4:59 pm

Thanks, very helpful, I think I read that blog some time back, but I guess I've slept since then. Wasn't having any problems then, so it didn't soak in. Looks like I should check all bulbs first, then if they are all good, I'll suspect the RLU.

DaveO430 · Post by **DaveO430** » Wed Jul 11, 2018 5:57 am

C. R. Mead wrote: ↑Tue Jul 10, 2018 4:59 pm Thanks, very helpful, I think I read that blog some time back, but I guess I've slept since then. Wasn't having any problems then, so it didn't soak in. Looks like I should check all bulbs first, then if they are all good, I'll suspect the RLU.

No, you should jumper those terminals and see if the lights work. That will prevent "suspecting" the RLU, it will let you know positively if it's good or bad.

C. R. Mead · Post by **C. R. Mead** » Wed Jul 11, 2018 9:29 am

Are there any photos or videos available showing the jumper wire procedure?

SnoBrdr · Post by **SnoBrdr** » Wed Jul 11, 2018 11:50 am

C. R. Mead wrote: ↑Wed Jul 11, 2018 9:29 am Are there any photos or videos available showing the jumper wire procedure?

The By Pass, 3 Wires, 6 Female Spades

1, Top Plug Top Left To Top Right
2, Top Plug Lower Left (inside) To Lower Plug Lower Left (inside)
3, Top Plug Lower Right (outside) To Lower plug top right (outside)

C. R. Mead · Post by **C. R. Mead** » Mon Jul 23, 2018 5:09 pm

I just returned from vacation ,made and installed the 3 jumper wires as instructed, still same problem, head and tail light both dim and turn signals not working. Anyone have any ideas what I should check next?
Both filaments in head and tail working.

DaveO430 · Post by **DaveO430** » Tue Jul 24, 2018 6:26 am

Check the ground wire at the upper coil bolt.

phoenixtubs · Post by **phoenixtubs** » Tue Jul 24, 2018 6:51 am

On my 78 there is a 4 pin connector behind the headlight that connects the flasher to the lights and also two grounds to the light bucket bolts. Don't know if a 77 is similar but mine were corroded enough that I replaced that connector and the ground connections

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