78 no power to bike


Information and questions on GL1000 Goldwings (1975-1979)
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yaont2
Posts: 16
Joined: Wed May 18, 2011 12:25 am
Location: Rock Hill, South Carolina
Motorcycle: 1978 GL1000

78 no power to bike

Postby yaont2 » Thu Jul 21, 2011 3:55 pm



Hey guys,
I'm struggling with an issue. I cranked my bike up yesterday and it ran for about 5 seconds then quit. I hit the starter button again and had nothing. Cycled the ignition switch and kill switch, and no lights or power to anything. I checked and cleaned the connections to the battery, checked the main fuse (it's not blown) and neither are the other fuses. I took the ignition switch off the bike and checked it, there is continuity through the switch. I still have no power through the switch to the bike.

Any help would be appreciated.



User avatar
virgilmobile
Posts: 7659
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: 78 no power to bike

Postby virgilmobile » Thu Jul 21, 2011 4:10 pm

Assume nothing.Replace that 33 year old dog bone fuse and clean the battery ground wire at the frame.

Use a test light.Probe from the battery post(with the key on)all the way to the coils.
The most common fail point is a good looking dog bone fuse on the starter relay. Here's a schematic if it will help identify wires.If you don't find it quick,let us know,we can direct you to the test procedures and points.
Attachments

yaont2
Posts: 16
Joined: Wed May 18, 2011 12:25 am
Location: Rock Hill, South Carolina
Motorcycle: 1978 GL1000

Re: 78 no power to bike

Postby yaont2 » Thu Jul 21, 2011 4:55 pm

I have replaced the old dogbone fuseblock with a new style ATC blade fuseable link. That was done weeks ago due to a faulty dogbone block. that fuse and contacts are beautiful. I have also taken a razor knife and cleaned all the terminals and wires going to the battery. Am in the process of checking with a meter through the wiring toward the switch. I have just found one wire connection that appears to have broken out of a connector leading from the main wiring harness up to the dash and dummy lights. I can't identify it (Green with Red stripe) It appears like a faded green color but i guess it could be GREY too.

User avatar
virgilmobile
Posts: 7659
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: 78 no power to bike

Postby virgilmobile » Thu Jul 21, 2011 5:24 pm

Measuring continuity is OK but the best method in a "no voltage situation " is to use a test light as it provides a load on the circuit being tested.Or use the voltmeter and test with the key ON.

With a "dead"bike,tho only wires to consider are the large red going to the ignition switch and the black leaving it.The rest of the wiring is for the accessories .

I have seen contacts so bad that they measure ohms OK but wont let any current pass.

User avatar
scotterichmond
Posts: 613
Joined: Fri May 06, 2011 3:49 pm
Location: Marblemount,wa
Motorcycle: 1975 GL1000
[img]http://images.goldwingdocs.com/scotterichmond_32376/Modestly_restored_1975_GL1000_750/engine_repainted_even_new_embl_3919.jpg[/img]

Re: 78 no power to bike

Postby scotterichmond » Thu Jul 21, 2011 5:35 pm

I had that one time... It was a corroded connection at the battery.




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