need help finding the neutral diode


Information and questions on GL1500 Goldwings (1988-2000)
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Swagonmaster
Posts: 348
Joined: Sun Apr 16, 2017 3:30 pm
Location: Stokesdale, NC
Motorcycle: 1990 gl1500 SE

need help finding the neutral diode

Post by Swagonmaster »



Blasted peskey thing, I am at my wits end trying to find the neutral diode. I've searched the topic and found what should be the location along the wire harness at the right front but as far as I can see it just isn't there. More pictures would be fantastic but a description might be enough or even what plastic parts need to come off to see it, any help is appreciated.
BTW, my bike is a 1990 SE.


Try to learn from the mistakes of others..... you won't live long enough to make them all yourself!
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virgilmobile
Posts: 9101
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: need help finding the neutral diode

Post by virgilmobile »

All I have is from a 93.Is this what your looking for?




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Swagonmaster
Posts: 348
Joined: Sun Apr 16, 2017 3:30 pm
Location: Stokesdale, NC
Motorcycle: 1990 gl1500 SE

Re: need help finding the neutral diode

Post by Swagonmaster »

It may very well be what I need, I sure didn't find it up front! Will have to check it out. Thanks
Try to learn from the mistakes of others..... you won't live long enough to make them all yourself!
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Swagonmaster
Posts: 348
Joined: Sun Apr 16, 2017 3:30 pm
Location: Stokesdale, NC
Motorcycle: 1990 gl1500 SE

Re: need help finding the neutral diode

Post by Swagonmaster »

Well it looks like that diode is for reverse. The one I'm looking for is a 3 pin inline diode that has been reported seen in the right front taped to the wiring harness. Unfortunately mine seems to be awol. (or I'm blind which has happened before, there are perks to being old you have an excuse) :lol:
Try to learn from the mistakes of others..... you won't live long enough to make them all yourself!
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PedroTQ
Posts: 211
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Location: Perth, Western Australia
Motorcycle: Motorcycles on the road;
1976 GL-1000 DJP outfit
1988 GL-1500 HRD outfit
1998 Valkyrie

Re: need help finding the neutral diode

Post by PedroTQ »

G'day,

Honda did a little tricky thing with its Diodes, the 88 has a cluster of the behind the battery, but they changed them all into a Diode Array, a little black box just under the trunk above the left saddle bag, in the 88-89 this is where the fuel pump relay sits, the diode array looks exactly the same but has more terminals on it, I see it often on e-bay advertised as a fuel pump relay (incorrect).

I only have this pic of it in a filthy condition on disassembly.

Best regards, Peter.
Attachments

Diode Array.
Diode Array.

#1 - 1975 GL-1000 - showroom
#2 - 1976 GL-1000 -DJP sidecar fitted
#3 - 1978 GL-1000 - RIP
#4 - 1975 GL-1000 - RIP
#5 - 1978 GL-1000 - RIP
#6 - 1988 GL-1500 - HRD sidecar fitted
#7 - 1998 GL-1500C - Valkyrie
#8 - 1990 GL-1500 SE - Naked 90
User avatar
PedroTQ
Posts: 211
Joined: Thu Jan 16, 2014 4:30 am
Location: Perth, Western Australia
Motorcycle: Motorcycles on the road;
1976 GL-1000 DJP outfit
1988 GL-1500 HRD outfit
1998 Valkyrie

Re: need help finding the neutral diode

Post by PedroTQ »

The 88/89 Fuel Pump Relay is on the left (small plug) and the Diode Array is on the right (larger plug)

Peter :D
Attachments


#1 - 1975 GL-1000 - showroom
#2 - 1976 GL-1000 -DJP sidecar fitted
#3 - 1978 GL-1000 - RIP
#4 - 1975 GL-1000 - RIP
#5 - 1978 GL-1000 - RIP
#6 - 1988 GL-1500 - HRD sidecar fitted
#7 - 1998 GL-1500C - Valkyrie
#8 - 1990 GL-1500 SE - Naked 90
User avatar
Swagonmaster
Posts: 348
Joined: Sun Apr 16, 2017 3:30 pm
Location: Stokesdale, NC
Motorcycle: 1990 gl1500 SE

Re: need help finding the neutral diode

Post by Swagonmaster »

Looks like I've been barking up the wrong tree, thanks for the help guys.
Try to learn from the mistakes of others..... you won't live long enough to make them all yourself!
User avatar
virgilmobile
Posts: 9101
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: need help finding the neutral diode

Post by virgilmobile »

Swagonmaster wrote: Thu Jan 14, 2021 6:59 pm Looks like I've been barking up the wrong tree, thanks for the help guys.
Avoid confusion..
The 88/89 are different than the 90 and up.There are some electrical changes.
What problem are you having and verify for us the year.


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