The “No Spark” Thread! (Electrical Issues!)


Information and questions on GL1200 Goldwings (1984-1987)
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TheRepoGuy
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Motorcycle: 1985 GL1200I Interstate
1985 GL1200A Aspencade

The “No Spark” Thread! (Electrical Issues!)

Post by TheRepoGuy »



Forewarning - LONG POST!

And here we go again! I’ve been browsing the forum for most of the early morning hours trying to determine what to check and where to start with my 1985 GL1200i and it not getting any spark. Initially after redoing part of the rats nest of wires in the two side compartments and removing a bunch of extra wires that I’d found the problem and fixed it but apparently not.

I initially had no power at the fuse box which sits on top of the air filter; I had a wire going from the positive side of the fuse box directly to the positive terminal on the battery which seemed rather odd; the wire itself was frayed and broken in several spots so I replaced it with a larger wire and the proper terminal and got power to the key switch which was my first issue...Then I noticed the fuse box had no ground wire; I affixed a green wire to the fuse box on the grounding terminal and that didn’t do anything either. So much for that idea!

I haven’t pulled the coils yet to test resistance on them as I’ve been eyeballing that Dodge Neon coil pack modification and that’s likely next on my list of things to do since it appears to be quite simple as far as I can tell. I did pull each individual plug out and checked for a spark via the “hold the plug to a grounding location and spin the motor over” test which proved to be unsuccessful on all four plugs 🤦‍♂️

One of the threads I read suggested to check the pulse generator (no clue where or what that is let alone what it looks like) as well as the ignition control module again not sure what that looks like and while I’m not a ”let’s go to Google and check” kind of person I figure that might be next just to see what the parts look like.

SO - Other than checking the pulse generator and ignition control module, can someone upload or point me in the right direction to a wiring diagram of the ignition system on these old girls?! My service manual hasn’t arrived yet and I’d REALLY like to figure out this no spark issue this weekend since it’s quiet around my house!
Nate



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DenverWinger
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Re: The “No Spark” Thread! (Electrical Issues!)

Post by DenverWinger »

Check for 12v Power at the coils. I don't have a 1200 schematic, but should be a Black or Black/white wire... If there's no power there nothing else will work. Also check Kill switch, power to the coils goes thru the kill switch on the way...
♫ 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

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TheRepoGuy
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Location: Grayson, Georgia
Motorcycle: 1985 GL1200I Interstate
1985 GL1200A Aspencade

Re: The “No Spark” Thread! (Electrical Issues!)

Post by TheRepoGuy »

DenverWinger wrote:
Sat May 25, 2019 6:23 am
Check for 12v Power at the coils. I don't have a 1200 schematic, but should be a Black or Black/white wire... If there's no power there nothing else will work. Also check Kill switch, power to the coils goes thru the kill switch on the way...
I’d gather it’s a resistance test at the Kill switch correct? My thought was the bike wouldn’t even spin over if the kill switch was activated and mine spins just fine but maybe I’m wrong?
I’m heading out in a few hours to snag a new multimeter anyway so that will be on my list of things to get.
Nate

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DenverWinger
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1980 GL1100 STD Vetter (2005-)
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1983 Trav-Lite Camper (2010-)
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1972 CL350 (1980-1988) sold
1978 Suzuki GS550 (1985-2005) sold
1977 GL1000 (2002-2006) sold

Re: The “No Spark” Thread! (Electrical Issues!)

Post by DenverWinger »

Think kill switch on 1200 only kills the spark.

+1 on the multimeter, you are only shooting in the dark without one if you are working on electrical. A 12V test light would be useful, too.
♫ 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

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TheRepoGuy
Posts: 66
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Motorcycle: 1985 GL1200I Interstate
1985 GL1200A Aspencade

Re: The “No Spark” Thread! (Electrical Issues!)

Post by TheRepoGuy »

DenverWinger wrote:
Sat May 25, 2019 7:22 am
Think kill switch on 1200 only kills the spark.

+1 on the multimeter, you are only shooting in the dark without one if you are working on electrical. A 12V test light would be useful, too.
Wouldn’t be any surprise to me if that’s all it did ha! How’s the weather back home treating y’all?! Enjoy the late snow the other day? Ha! I’m oddly enough an 18th generation Denver Native; moved down to GA in 2014 but the roots are all back in the new legal drug capital of America 🙄🙄

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DenverWinger
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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: The “No Spark” Thread! (Electrical Issues!)

Post by DenverWinger »

Ya - it was pretty cold and gloomy all last week, but warmed up Friday and melted the last of the snow. Got 6" of the stuff in NW Denver. Spose'd to be in the 70's all weekend, with some rain Mon afternoon.

I'm a Michigan transplant, but lived in Colorado about 40 yrs now, 33 in NW corner of Denver. I guess that makes me "Semi-Native".
♫ 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

DaveO430
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Re: The “No Spark” Thread! (Electrical Issues!)

Post by DaveO430 »

TheRepoGuy wrote:
Sat May 25, 2019 5:15 am


I initially had no power at the fuse box which sits on top of the air filter; I had a wire going from the positive side of the fuse box directly to the positive terminal on the battery which seemed rather odd; the wire itself was frayed and broken in several spots so I replaced it with a larger wire and the proper terminal and got power to the key switch which was my first issue...Then I noticed the fuse box had no ground wire; I affixed a green wire to the fuse box on the grounding terminal and that didn’t do anything either. So much for that idea!

Nothing in the fuse box has anything to do with ignition spark. You back doored power to the switch, still may not be powering the ignition. Did you check the main fuse and the connection on top of the starter solenoid?

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TheRepoGuy
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1985 GL1200A Aspencade

Re: The “No Spark” Thread! (Electrical Issues!)

Post by TheRepoGuy »

DaveO430 wrote:
Sat May 25, 2019 9:40 am
TheRepoGuy wrote:
Sat May 25, 2019 5:15 am


I initially had no power at the fuse box which sits on top of the air filter; I had a wire going from the positive side of the fuse box directly to the positive terminal on the battery which seemed rather odd; the wire itself was frayed and broken in several spots so I replaced it with a larger wire and the proper terminal and got power to the key switch which was my first issue...Then I noticed the fuse box had no ground wire; I affixed a green wire to the fuse box on the grounding terminal and that didn’t do anything either. So much for that idea!

Nothing in the fuse box has anything to do with ignition spark. You back doored power to the switch, still may not be powering the ignition. Did you check the main fuse and the connection on top of the starter solenoid?
Aye - the fuse on the solenoid was fine; adapted to a 30 amp inline. That was my initial concern was the power was back doored as you said; that’s what lead me to believe the ignition or something within the system was cooked. I’m replacing the solenoid today regardless so we shall see if it has any different effect with a better connection on a brand new part.
Nate



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AZgl1800
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Re: The “No Spark” Thread! (Electrical Issues!)

Post by AZgl1800 »

TheRepoGuy wrote:
Sat May 25, 2019 5:15 am
My service manual hasn’t arrived yet and I’d REALLY like to figure out this no spark issue this weekend since it’s quiet around my house!
Nate
I sent you a PM on this forum with what hopefully is a schematic that works?
~John

'02 GL1800
2009 Piaggio MP3 250cc

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TheRepoGuy
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1985 GL1200A Aspencade

Re: The “No Spark” Thread! (Electrical Issues!)

Post by TheRepoGuy »

AZgl1800 wrote:
Sat May 25, 2019 1:36 pm
TheRepoGuy wrote:
Sat May 25, 2019 5:15 am
My service manual hasn’t arrived yet and I’d REALLY like to figure out this no spark issue this weekend since it’s quiet around my house!
Nate
I sent you a PM on this forum with what hopefully is a schematic that works?
Ill have to get it loaded on the computer to know for sure but thank you very much!

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Ivan161
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Re: The “No Spark” Thread! (Electrical Issues!)

Post by Ivan161 »

this is wiring diagram for your GL
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TheRepoGuy
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1985 GL1200A Aspencade

Re: The “No Spark” Thread! (Electrical Issues!)

Post by TheRepoGuy »

Ivan161 wrote:
Sun May 26, 2019 11:02 pm
this is wiring diagram for your GL
Yup! I need a manual like that! Where does one find that to buy it?!

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Re: The “No Spark” Thread! (Electrical Issues!)

Post by Ivan161 »

i buy on EBAY.this is clymers manual https://www.ebay.com/itm/SHOP-MANUAL-GO ... SwXPNaTX0f

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TheRepoGuy
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Re: The “No Spark” Thread! (Electrical Issues!)

Post by TheRepoGuy »

Ivan161 wrote:
Sun May 26, 2019 11:37 pm
i buy on EBAY.this is clymers manual https://www.ebay.com/itm/SHOP-MANUAL-GO ... SwXPNaTX0f
Much appreciated Ivan! Thanks!

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saamiam
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Re: The “No Spark” Thread! (Electrical Issues!)

Post by saamiam »

Ivan161 wrote:
Sun May 26, 2019 11:02 pm
this is wiring diagram for your GL
Ivan, I could kiss you!!! Ive spent the past 4 days trying to find the dang diagram specific to the '85 with zero luck!! 84, 83, 82, 86, 87 all day long, but the 85... good luck. And please dont tell me that the haynes/clymer 84 to 87 covers it, because it doesnt cover it exactly. Just different enough to screw things up for me! God bless you Ivan.

Yes, this is 100% self induced anxiety.. like a dumbass I decided to strip the wiring of things i didnt need or use and while i was at it, untangle the rats nest of spaghetti.. as with most things I went a little too far and the first reassembly i shorted and burned up the fuel pump relay, then went too far again and basically started from scratch rewiring the ignition circuit. Now she turns over but no spark, 3 times now and im at a loss. I know i cut something out i wasnt supposed to but cant figure it out.. and oh yeah.. i really chopped the bike up..
below are some before and after pics.. and the current state of wiring..
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