Im stumped, starter issue on 1978 GL1000


Information and questions on GL1000 Goldwings (1975-1979)
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Pfn2699
Posts: 3
Joined: Tue Jul 14, 2020 9:48 pm
Location: Burt, Iowa
Motorcycle: 1978 GL1000 w/ Vetter fairing and Bates bags

Im stumped, starter issue on 1978 GL1000

Post by Pfn2699 »



Ok, so first time poster, long time lurker, i don't know how many times I've solved issues searching the forums, so thank you.

Ok, so im having issues with my starter continuing to run on my 78 gl1000. So I've put on about 6000 miles this season with no problems other than little things that were easily taken care of, on my last couple of rides it was running a little rough at highway speed so i pulled the carbs and stuck slide, fast forward, got everything put back together as I've done several times before, went to fire it up and starter button dims lights, but nothing else, jumped the solenoid and it fired but starter kept spinning, had to shut off at key.

So since then I've tried 2 more solenoids, same results, went through a bunch of the harness and replaced some questionable connectors, etc. the correct way, but no obvious bad spots, but haven't gotten through all of it, disassembled starter button, was cleaning and the ball bearing decided to jump off the towel on my bench and jump down the floor drain, so ill be getting a new switch, but with that in mind I cut /stripped the 3 wires (y/r, b, and b/brown) and mimicked the switches function to (this is where i stumble a bit with the ballast resistor and / or diodes or whatever it is, but i know it's to provide full voltage to coils, anyway, same result as jumping solenoid, starter keeps spinning until i shut the key/ignition off.

I've got a pretty good understanding of electrical, but im stumped, i should mention I've already replaced dogbone and stator /regulator plug eliminated, all lights are led and i just ran a relay to both high and low beam since I've got everything tore apart anyways.

As i mentioned before i get stumped on the ballast resistor and diodes etc, i have a light understanding of what they are / what they do and why, but as far as symptoms of them going bad etc. Is virgin territory for me, so i don't know what to look for or what to test with those or maybe they wouldn't be the problem, I've done a lot of searching on here and found a couple of people who had similar problems but never posted a final finding or if they ever discovered a problem. I apologize for this being so long but tried to be as detailed as I could, i would really appreciate any help or suggestions, im supposed to do a benefit ride this weekend and would like to make that. Thank you in advance.


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DenverWinger
Posts: 1730
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Im stumped, starter issue on 1978 GL1000

Post by DenverWinger »

I don't have a GL1000 start circuit in front of me, but is it possible you have the Battery and Starter Motor (the two main bolts) connections reversed? One terminal labeled B, the other M. B for battery of course.

Not certain on this model but on some there's internal connections to one of the two terminals and that's why it makes a difference. This may not apply to yours though. Worth checking out anyway.
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark
Pfn2699
Posts: 3
Joined: Tue Jul 14, 2020 9:48 pm
Location: Burt, Iowa
Motorcycle: 1978 GL1000 w/ Vetter fairing and Bates bags

Re: Im stumped, starter issue on 1978 GL1000

Post by Pfn2699 »

Good suggestion, although I tried that and same result, to update though, while testing, i found some voltage coming from the starter button when not pressed (4.8v) and full 12v when pressed, so without much understanding of how the diode works, im leaning towards that being the problem, going to run into the Honda shop in town and see if they happen to have one
User avatar
DenverWinger
Posts: 1730
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: (s)
1980 GL1100 STD Vetter (2005-)
1993 GL1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: Im stumped, starter issue on 1978 GL1000

Post by DenverWinger »

Yup, 4.8 volts will probably hold the relay closed once triggered by the button. Pretty sure the diode is on the ground side of things, though, and don't think that will be the issue.

Is that 4.8 volts present before hitting the start button and sticking the relay?
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark
Pfn2699
Posts: 3
Joined: Tue Jul 14, 2020 9:48 pm
Location: Burt, Iowa
Motorcycle: 1978 GL1000 w/ Vetter fairing and Bates bags

Re: Im stumped, starter issue on 1978 GL1000

Post by Pfn2699 »

Yes it was, and i was thinking the same on the diode also, that it was on ground side, but for testing purposes I grounded the solenoid to the battery - and ran a wire directly from the starter switch to the solenoid eliminating the diode and it started up perfectly, i ordered a couple of diodes but i am really stumped as to where the 4.8v was coming from, because everything tests correctly now.


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