Power loss, voltage drop & then nothing


Information and questions on GL1100 Goldwings (1980-1983)
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norseman47
Posts: 52
Joined: Wed Sep 08, 2010 7:36 pm
Location: Ulster Park, NY
Motorcycle: 1982 GL1100I

Power loss, voltage drop & then nothing

Postby norseman47 » Sun Jul 03, 2011 10:37 am



My '81 Interstate was running great yesterday, then 46 mile on a filled tank it started losing power. I pulled over & it then died. First thought was bad fuel, but there were no idiot lights lit on the center panel. I worked the battery connections & the panel lit back up, the bike started just fine & I was on my way. Went a couple of miles & it happened again. This time the panel wouldn't light up again. I replaced the battey with a brand new one. The panel lit up again, the bike fired right back up & all was well I thought. The bike again started losing power. I notcied the volt meter heading for zero volts, so I turned off the bike, to put the headlamp fuse. Now the panel refuses to light up at all & there's no indication of power getting anywhere.

While I try to find the fusable link, does anyone have other suggestions? Thanks!



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norseman47
Posts: 52
Joined: Wed Sep 08, 2010 7:36 pm
Location: Ulster Park, NY
Motorcycle: 1982 GL1100I

Re: Power loss, voltage drop & then nothing

Postby norseman47 » Sun Jul 03, 2011 3:01 pm

I verified there's voltage at, & thru, all fuses. Still mystified. Ignition swtich...?

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littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Power loss, voltage drop & then nothing

Postby littlebeaver » Sun Jul 03, 2011 3:54 pm

You said you checked all fuses, even the main fuse at the solenoid area? They call it a dogbone fuse, I guess it looks kinda like a bone.... and sometimes they develop cracks , also check the plug from the stator[three yellow wire plug] it gets burnt at the connection plugin..Or it could be something else.. :D

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norseman47
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Location: Ulster Park, NY
Motorcycle: 1982 GL1100I

Re: Power loss, voltage drop & then nothing

Postby norseman47 » Sun Jul 03, 2011 4:50 pm

If you mean the 30A main fuse, yup, checked that. I also checked the battery ground. On a whim I just turned on the key & the panel lit up! So I tried starting it. It cranked just fine, I heard a "click" & the panel went out along with the cranking. Not a "zap"; a "click". Everything electrial is not coming on. Not even the accessory lighting.

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littlebeaver
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Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Power loss, voltage drop & then nothing

Postby littlebeaver » Sun Jul 03, 2011 5:09 pm

Wow, No power...I'm surely not a electrical expert, if its not the ground to the frame or the cables or the 30amp fuse and your power is still not funtioning I wonder if it could be the ignition switch...Hang in there Norseman47, there will be help soon, someone else with much more knowledge will help ya...Happy 4th, Sir and thank You so very much for your service to our Country..

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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: Power loss, voltage drop & then nothing

Postby virgilmobile » Sun Jul 03, 2011 7:18 pm

Use a test LIGHT.Connect to the FRAME,not the battery for this test.Probe the 10 amp fuses with the key on.They should all have volts on them.If they don't,get to the ignition switch,The red wire is hot all the time.It is fed from the 30 amp fuse under the cover on the starter relay.If you have power on the red wire on the ignition switch and nothing on the black or black/green,the switch contacts are bad.

The switch can(with care)be disassembled,cleaned,and used again.Usually arcing contacts burn pits in the copper contacts.A good sanding will restore them.Don't forget to stretch the springs a little.

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littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Power loss, voltage drop & then nothing

Postby littlebeaver » Sun Jul 03, 2011 7:40 pm

Thanks Virgil, that was awesome, I hope this never happens to me but with your help if it ever does I can fix it now...Man.. I like this site..Happy 4th to you guys..

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norseman47
Posts: 52
Joined: Wed Sep 08, 2010 7:36 pm
Location: Ulster Park, NY
Motorcycle: 1982 GL1100I

Re: Power loss, voltage drop & then nothing

Postby norseman47 » Mon Jul 04, 2011 11:28 am

The saga today. Thanks for the tip Virgil. The panel lit up this morning & there was voltage on all fuses. I fired up the engine, it ran a few minutes & died. there was no voltage on any fuse in the panels. So, I did get the ignition switch out, but broke off a plastic tab getting it apart. How do you get the switch itself apart? I don't see any easy way.

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virgilmobile
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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: Power loss, voltage drop & then nothing

Postby virgilmobile » Wed Jul 06, 2011 3:49 pm

With the switch hanging out,can you probe verify that it has power going to it and nothing going out?Red -hot 12 volts...black-switched 12 volt...black/green switched 12 volt.
I'll dig in my 'box o stuff' and look at the switch.I'll post my findings tonight.

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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: Power loss, voltage drop & then nothing

Postby virgilmobile » Wed Jul 06, 2011 9:55 pm

I have a switch from a 81 gl1100 in my hand.I turned the key to "on".With a small screwdriver I pushed pried a little on each of the 3 tabs to release the switch.A little wiggle and it came off.
Now to separate it.??????
I'll look under the micro scope to see how to get to the contacts.Back in the morning

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: Power loss, voltage drop & then nothing

Postby virgilmobile » Thu Jul 07, 2011 8:58 am

Here's a set of pix of the disassembly of the gl1100 ignition switch.
Attachments

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littlebeaver
Posts: 4420
Joined: Mon Sep 21, 2009 6:11 pm
Location: Kansas City, Kansas
Motorcycle: 1981 gl 1100 I , 79 Yamaha XS11
Special, 82 Kawa 750 CSR, 82 Kawa 750 LTD, 03 Kawa Nomad 1500, 99 Kawa Voyager 1200

Re: Power loss, voltage drop & then nothing

Postby littlebeaver » Thu Jul 07, 2011 11:08 am

Wow, excellant work there Virgil...That's gonna help out a lot a Goldwingers...Thank you, As they say down that way in Louisiana, Bro.. You the man... :D

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norseman47
Posts: 52
Joined: Wed Sep 08, 2010 7:36 pm
Location: Ulster Park, NY
Motorcycle: 1982 GL1100I

Re: Power loss, voltage drop & then nothing

Postby norseman47 » Sat Jul 09, 2011 7:27 pm

Thanks for the info Virgil! Busted another plastic tab so I gave up & bought a brand new ignition switch, by EMGO, off ebay for $23.00. Got it installed this morning & things are working fine now.

When the original switch was in the off position, I had voltage on the fuse panels. With the new switch, there's no voltage on the fuse panel in the off position. Plus the bike fires & stays lit!

Thanks all for your help!




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