1987 Interstate fuel relay -

[TheRepoGuy]

Evening folks -
Has anyone found an alternate relay for the fuel pump that works by some odd chance? I haven’t been able to locate one for the 1987 I’ve got and each time the relay is jumped at the plug it’ll work and when it’s hooked into the relay the pump won’t work at all....

I’ve called the Honda stealerships and they can’t even locate the relay or anything comparable.


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[desertrefugee]

I am running a standard automotive relay to the 1200 fuel pump that I installed on my gl1000. Nothing special about that relay. The only difference is the relay on a 1200 is fed from a coil signal I think. Can't remember exactly.. But it insures that if the motor stops running, the fuel pump stops.

I should have put a bank sensor on mine that does the same thing, but I didn't. If I crash, the fuel pump will just keep on pumping and the Motorcycle will burn up.

 

[saganaga]

I can't help reading desertrefugee's post, then his signature...

 

[desertrefugee]

Stupidity?

 

[Rednaxs60]

Sense of adventure, like having a bit of body pain, lets you know you are alive.

To the relay, agree with desertrefugee, find out what the inputs/outputs are and wire in an automotive relay. Did this for one of the relays on my '85 Limited Edition until my local shop found some NOS in the warehouse. It will work fine, and operate like the Honda relay.

 

[saganaga]

desertrefugee » Today, 7:19 am[/url]":2mqjlyb2]
Stupidity?

I prefer motorcycles that don't self-immolate in a crash, but to each their own.

 

[desertrefugee]

I prefer not to crash.

 

[desertrefugee]

saganaga » Fri Jul 10, 2020 8:00 pm[/url]":1665eerx]

desertrefugee » Today, 7:19 am[/url]":1665eerx]
Stupidity?

I prefer motorcycles that don't self-immolate in a crash, but to each their own.

I was going to just let sleeping dogs lie, but cannot. "To each his own" is a nice philosophy. It works best when it's implemented by saying nothing and allowing grown-up men, who choose to run their motorcycles (or whatever) in a particular configuration, do just that without snide, public comments.

 

[dan filipi]

desertrefugee » 25 minutes ago[/url]":1k55cdck]

saganaga » Fri Jul 10, 2020 8:00 pm[/url]":1k55cdck]

desertrefugee » Today, 7:19 am[/url]":1k55cdck]
Stupidity?

I prefer motorcycles that don't self-immolate in a crash, but to each their own.

I was going to just let sleeping dogs lie, but cannot. "To each his own" is a nice philosophy. It works best when it's implemented by saying nothing and allowing grown-up men, who choose to run their motorcycles (or whatever) in a particular configuration, do just that without snide, public comments.

Yep agree dat.

Someone, I don’t remember who, once said “As long as it don’t cause a murder”

That’s good enough for me.

 

[saganaga]

Tone of my last post should have been humorous. No offense to anyone was intended.

Ironically, today I discovered my petcock leaks slightly when moved. I may not want to tempt the gods by making any more jokes about self-immolating bikes.

 

[desertrefugee]

You have a petcock on your bike? I have a direct line to the fuel pump that won’t shut off on mine...

Meanwhile, I hope the PO has found a nice, cheap, off-the-shelf relay to install in his 1200.

 

[TheRepoGuy]

You have a petcock on your bike? I have a direct line to the fuel pump that won’t shut off on mine...

Meanwhile, I hope the PO has found a nice, cheap, off-the-shelf relay to install in his 1200.

Nope ha! I kinda sat back and let the post unfold a bit. I need to do a bit more research on the signal in and out before I go try to wire one up and cause more damage than good


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[saganaga]

desertrefugee » Today, 9:20 pm[/url]":2uaf3v8u]
You have a petcock on your bike? I have a direct line to the fuel pump that won’t shut off on mine...

Meanwhile, I hope the PO has found a nice, cheap, off-the-shelf relay to install in his 1200.

Yep. I'm one of those paranoid folks that always use it as well. Which is how I got a moped back once (thief didn't know the gas was turned off).

I guess I'll end up buying a rebuild kit. About as expensive as a cheap replacement, but probably more reliable and the main/reserve tube length will be correct.

As to OP, hope he found a fix as well. Plenty of methods to fix these old bikes, just depends how deep you want to go.

 

[Dusterdude]

Randakks sells a kit,but you have to buy the one for the 1100.

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[TheRepoGuy]

The way I see things and it could be different or model specific since this is a 1987 is The relay gets its trigger from the ignition coil/control unit which is or should be a blue with yellow tracer and it looks like it gets power directly from the regulator/rectifier via a black wire which leaves one wire not sure which color or what that last wire does. Gotta go back through the schematic but my brain or the migraine from my ex wife and her nonsense aren’t in agreement with the small print this morning [emoji1787][emoji1787]


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[desertrefugee]

saganaga » Sat Jul 11, 2020 10:52 pm[/url]":7stfmhm6]

desertrefugee » Today, 9:20 pm[/url]":7stfmhm6]
You have a petcock on your bike? I have a direct line to the fuel pump that won’t shut off on mine...

Meanwhile, I hope the PO has found a nice, cheap, off-the-shelf relay to install in his 1200.

Yep. I'm one of those paranoid folks that always use it as well. Which is how I got a moped back once (thief didn't know the gas was turned off).

I guess I'll end up buying a rebuild kit. About as expensive as a cheap replacement, but probably more reliable and the main/reserve tube length will be correct.

As to OP, hope he found a fix as well. Plenty of methods to fix these old bikes, just depends how deep you want to go.

I guess this was my failed attempt at humor. I actually do have a working petcock on my 1000. I drilled the rivets and put kit on it four five years ago.

 

[saganaga]

TheRepoGuy » Today, 6:51 am[/url]":w0rum9v8]
The way I see things and it could be different or model specific since this is a 1987 is The relay gets its trigger from the ignition coil/control unit which is or should be a blue with yellow tracer and it looks like it gets power directly from the regulator/rectifier via a black wire which leaves one wire not sure which color or what that last wire does. Gotta go back through the schematic but my brain or the migraine from my ex wife and her nonsense aren’t in agreement with the small print this morning [emoji1787][emoji1787]

Couldn't find a schematic for '87, but looking at the relay on the '84 schematic:

The final wire is white with a blue and/or black tube coming from the ignition control unit & coil.

desertrefugee » Today, 8:14 am[/url]":w0rum9v8]
I actually do have a working petcock on my 1000. I drilled the rivets and put kit on it four five years ago.

That's what I'm planning. Supposedly soft aluminum body, so going to pick up the Harbor Freight cheapo metric tap set and replace the rivets with screws.

 

[TheRepoGuy]

Here’s the wiring on the 87...

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[desertrefugee]

I think you have already pretty much figured it out. Earlier, you mentioned the feed wire coming from the coil trigger, and you also mentioned the main voltage supply wire that gets switched to the pump by the relay. The only two remaining wires of concern on an automotive relay will be the grounds or returns for each of those respective circuits. They can both go to the same point (or any system single point ground) and could share a common spliced wire – assuming it’s of sufficient gauge to carry the current. The fuel pump doesn’t pull that much current. I believe I have mine on a 15 amp circuit, but I’d have to go check.

The only real decision you have to make now is: Do you want to use the factory connector that you show above? Or are you willing to hack it off and either splice or add your own connector? Or you could repurpose the original connector that plugs into that and then wire the relay appropriately.

Ya gots choices.

 

[TheRepoGuy]

Ha! I’ll cut it out no doubt and use those fancy 3m connectors to close it off. I went by the auto parts store earlier and could only find “flasher” relays which I didn’t buy because they’re not what I was looking for and the lady behind the counter wasn’t the brightest crayon in the box....so I’ll have to find the correct relay and get it wired in properly.


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