Help with non connected pipes!


Information and questions on GL1500 Goldwings (1988-2000)
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sanglasmick
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Location: Wexford, Ireland
Motorcycle: GL1500 1996.

Help with non connected pipes!

Postby sanglasmick » Sat Sep 26, 2015 3:59 pm



Hi All,

I bought a 1996 GL1500 a couple of months back and have started some overdue maintenance. I have removed a lot of the covers to do this and have found some surprises. Apart from a couple of perished vacuum pipes, I have found a solenoid on the left of the bike with no vacuum pipes attached and just above it, under the air filter, again on the left, a metal pipe with no hose attached. There are no loose hoses visible so I thought I'd call on the many friendly experts here for some help and advise. I will try to attach a photo. The metal pipe isbeside the yellow block connector.
Attachments
Pipes missing.
Pipes missing.



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ct1500
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Re: Help with non connected pipes!

Postby ct1500 » Sat Sep 26, 2015 6:09 pm

Ouch. The part on the left is the decel compensation solenoid valve aka shot air. The pipe I would have to guess was for a CA emission equipped bike.
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spiralout
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1996 GL1500 SE

Re: Help with non connected pipes!

Postby spiralout » Sat Sep 26, 2015 10:02 pm

All due respect to J.D., but that's the PAIR valve solenoid. The lower hose barb on the solenoid is #6 green that goes to the #6 intake manifold and the top barb is an unmarked short hose that tee's to the #3 green, which goes to the left rear of the air box base, and to a hard line which goes to the PAIR control valve underneath the carbs. Like he said, your hard line underneath the air box is California emissions stuff which probably went to the evap control valve.
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spiralout
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Re: Help with non connected pipes!

Postby spiralout » Sat Sep 26, 2015 10:05 pm

What a pain in the ass to add attachments tonight. And clicking a posted attachment is opening the pic in the same tab, instead of the normal pop up box

sanglasmick
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Motorcycle: GL1500 1996.

Re: Help with non connected pipes!

Postby sanglasmick » Sun Sep 27, 2015 1:04 am

Many thanks Guys.

Particularly Spiralout for the photos, that is exactly what I was hoping for. I have examined my Clymer diagrams but couldn't figure out the connections. I think the bike is Californian as there is a sticker on top of the tank saying something about Californian emissions, but as I live in Ireland, I didn't take much notice. Now at least I will have a direction to go looking.

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ct1500
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Re: Help with non connected pipes!

Postby ct1500 » Sun Sep 27, 2015 8:54 am

The plot thickens.

Could be either shot air/pair solenoid valves. The pic here shows shot air with yellow banded hoses in that location with the pair solenoid just in front out of the picture. Honda did change the 1500 wiring/component locations through the production run.

To the OP, there will be stickers with hose number locations on your solenoid, nos. 1 & 6 if for pair valve or 6 &10 if for shot air.

Not all 1500 engines had the pair system, but would have had the shot air to the best of my knowledge. If you have the chrome pipes on top of the cylinder heads it has pair. The chrome pipe can be seen in the pic just to the right of spark plug boot.
Attachments
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

sanglasmick
Posts: 19
Joined: Fri Jun 19, 2015 3:31 am
Location: Wexford, Ireland
Motorcycle: GL1500 1996.

Re: Help with non connected pipes!

Postby sanglasmick » Sun Sep 27, 2015 11:32 am

Thanks ct1500,

I was out today looking again at my bike, and I can see the (green base) pair solenoid you describe but not the shot air solenoid?

My pair solenoid is not connected to any vacuum pipes, although the yellow connector in my photo is the electrical connection for it.

I am thinking that my engine has been changed, possibly for an older model. When I look at your photo, you show three small steel pipes coming out from under the carbs, near the chrome pipe you mention. My bike only has two small pipes there, not three. So I dont think I currently have the pair system running, even though the 1996 model could well have had it from the factory!

My engine number is SC22E-2804178 and I suspect it is much older than the bike itself!

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spiralout
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Re: Help with non connected pipes!

Postby spiralout » Sun Sep 27, 2015 12:47 pm

I only have parts books up to the '95 model year but following the engine serial number pattern, yours is a '96. That means it has PAIR and shot air. Your shot air (IASA) valve should have three lines attached to it and the PAIR solenoid should have two. The '96 should have the three small steel lines shown in the pics. This is all for a non CA emissions bike, though. I have no experience with those so there could be lots of differences.

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ct1500
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Re: Help with non connected pipes!

Postby ct1500 » Sun Sep 27, 2015 3:57 pm

The pair and shot air solenoids are identical in appearence, the actual shot air valve which is located on top of engine just to the left of thermostat housing is the one with 3 vacuum hoses attached.

To the OP do not become fixated on the little pipes. Does it have the big 1/2" chrome pipes and what are the numbers on the sticker of the solenoid in question.
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spiralout
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Re: Help with non connected pipes!

Postby spiralout » Sun Sep 27, 2015 4:36 pm

ct1500 wrote:The pair and shot air solenoids are identical in appearence, the actual shot air valve which is located on top of engine just to the left of thermostat housing is the one with 3 vacuum hoses attached.

That's the one I'm talking about with the 3 hoses on it. I've seen older models that had a two hose solenoid valve underneath the left pocket that I'm guessing was for the shot air. I've had two '96 and a '98 apart and none had that solenoid, just the one for the PAIR. Possible they eliminated it for later years?

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ct1500
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Re: Help with non connected pipes!

Postby ct1500 » Sun Sep 27, 2015 5:19 pm

Very possible as the 1500 went through some changes and the service manual cannot always be relied on due to known errors/omissions throughout.
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sanglasmick
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Re: Help with non connected pipes!

Postby sanglasmick » Mon Sep 28, 2015 4:43 am

Thanks again,

I have attached pictures of the Pair solenoid? No 6. And also of the two steel pipes coming from under the carbs.
Attachments
Pair solenoid?
Pair solenoid?
Two steel pipes and no chrome pipe.
Two steel pipes and no chrome pipe.

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ct1500
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Re: Help with non connected pipes!

Postby ct1500 » Mon Sep 28, 2015 2:10 pm

One would think if the bike was a CA emission equipped vehicle that it would have the pair (pulse air) system but it does not. The green sticker of solenoid has the AICV which is (air injection control valve) AKA pair valve. So with that particular (replacement?) engine the solenoid valve is just taking up space.

Ride on, all OK as the pair system was for emissions only and is not mission critical.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

sanglasmick
Posts: 19
Joined: Fri Jun 19, 2015 3:31 am
Location: Wexford, Ireland
Motorcycle: GL1500 1996.

Re: Help with non connected pipes!

Postby sanglasmick » Mon Sep 28, 2015 4:48 pm

Again many thanks ct1500.

I must admit that once I replaced the perished pipe to the engine control module, the bike ran a lot smoother than before.
But I don't like loose bits and pieces, like the top left front engine mounting bolt, which had no nut!

It will take some time before I get to road test as I am servicing the bike generally and replacing all the fluids before winter sets in. Also replacing the rear air shock boot and have to check out the compressor, which doesn't work either!

So if you don't mind I may need some more of your vast experience before I'm done.

A very big THANK YOU.

cheers,

Mick.

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spiralout
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1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Help with non connected pipes!

Postby spiralout » Mon Sep 28, 2015 6:51 pm


ct1500 wrote:One would think if the bike was a CA emission equipped vehicle that it would have the pair (pulse air) system but it does not

Yep. That engine number is a '96, though but must be a replacement. I'm curious now what country models didn't have the PAIR emissions in '96.
sanglasmick, here's a chart with the country codes if you want to do some research.




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