Vacuum hoses 18 and 19


Information and questions on GL1500 Goldwings (1988-2000)
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the draggin
Posts: 30
Joined: Mon Aug 24, 2015 3:47 pm
Location: Pittsbugh,Pa 15239
Motorcycle: 1998 Goldwing SE
1997 Harley FLHTCUI

Vacuum hoses 18 and 19

Postby the draggin » Fri Sep 02, 2016 4:19 pm



What exactly do these two lines do? It appears to dump vacuum through the two valves which I suppose are operated by the ECM to the little filter but that seems to be it. Why? I sprayed some carb cleaner into them and got a very slight stumble but that was about it. I'm trying to figure out why after rebuilding the carbs and syncing and adjusting mixture settings I have a stumble that was not there before. Idle is steady at about 800 and high end is awesome but that part throttle stumble is really getting to me.



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spiralout
Posts: 1050
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Vacuum hoses 18 and 19

Postby spiralout » Sat Sep 03, 2016 7:27 am

the draggin wrote:What exactly do these two lines do? It appears to dump vacuum through the two valves which I suppose are operated by the ECM to the little filter but that seems to be it. Why?

I can't link to a specific time on these forums so skip to 7:20.



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RBGERSON
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had every year from 75 to 83

Re: Vacuum hoses 18 and 19

Postby RBGERSON » Sat Sep 03, 2016 8:43 am

Spiral where did you find that video and are there more..??? very informative where they made for HOnda mechanic training???
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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spiralout
Posts: 1050
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Vacuum hoses 18 and 19

Postby spiralout » Sat Sep 03, 2016 8:58 am

RBGERSON wrote:Spiral where did you find that video and are there more..??? very informative where they made for HOnda mechanic training???

I came across it on Youtube a few years ago. That guy uploaded some other vids that look to be Honda training stuff, too. Check out his channel. I can't post a link to it here because of the auto embed video thing the forums do.

youtube.com/user/skunk5469/videos

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RBGERSON
Posts: 2625
Joined: Tue Mar 09, 2010 7:57 am
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had every year from 75 to 83

Re: Vacuum hoses 18 and 19

Postby RBGERSON » Sun Sep 04, 2016 7:54 am

Thanks he has lots of tech type videos good for future reference.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

the draggin
Posts: 30
Joined: Mon Aug 24, 2015 3:47 pm
Location: Pittsbugh,Pa 15239
Motorcycle: 1998 Goldwing SE
1997 Harley FLHTCUI

Re: Vacuum hoses 18 and 19

Postby the draggin » Sun Sep 04, 2016 11:30 am

I saw that video abo, thanks for posting that is the real deal. I found that about a year ago and could not find it again. The new slides I got from Saber, Barracuda parts and I had this new hesitation problem come up, so I pulled the whole bike down again and removed the slides and measure them. The Barracuda slide is approximately .030 inch longer and sits deeper into the carb, so it puts the needle into the jet deeper end result starving for both fuel and air. What to do, what to do?

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spiralout
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Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Vacuum hoses 18 and 19

Postby spiralout » Sun Sep 04, 2016 2:28 pm

I can tell you what you shouldn't have done. You shouldn't have given that rip off company any of your money. What to do now? Measure to make sure the needle is actually deeper and it's not just the slide that's longer. If that's the case, you could shim the needle up and use it until the diaphragm gets holes within a year like mine did then replace it with OEM or use the OEM slide and replace the diaphragm with one of these http://jbmindustries.com/KeihinVGinstructions.html.
I'd go ahead and replace it now. I used the jbm diaphragm a year ago and so far, so good.

Verify your mixtures using this method. If you're too lean, it'll cause that stumble, too. http://goldwingdocs.com/forum/viewtopic.php?f=14&t=17014

the draggin
Posts: 30
Joined: Mon Aug 24, 2015 3:47 pm
Location: Pittsbugh,Pa 15239
Motorcycle: 1998 Goldwing SE
1997 Harley FLHTCUI

Re: Vacuum hoses 18 and 19

Postby the draggin » Sun Sep 04, 2016 4:27 pm

Yea I'm seeing that there is no concern for customer satisfaction, since they don't care about the quality of their product and the bad rap I see on Honda forums. They should either find a better manufacturer or just refer you to the OEM. I got a complete rebuild kit with jets and O-rings and such and the main jet is marked 145 and everyone says that Honda originally used a 50 then upgraded to 55 to stop the hesitation issue. My original jets have no markings on them, so I have no idea what size they are, I kept them in my carbs and used the original needles too. I put an o-ring on the slide so as to raise it up and that seemed to help some but there is still some hesitation that I can't seem to dial out. I think that if Barracuda had intended for the jet and needle was a matched set they should at least include instructions to install them with the new slides, but there are no instructions nor a parts list or anything to refer to and I can't find anything at Saber or Barracuda to help with this. Again no customer service or support (must be run by a bunch of progressive liberal crony capitalists) from Saber I can't understand but Barracuda being a Chinese enterprise they probably couldn't translate to English so they just left them out. I'm getting really fed up with the lack of ethical business practices that seem to grow every day.

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spiralout
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Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: Vacuum hoses 18 and 19

Postby spiralout » Sun Sep 04, 2016 5:51 pm

the draggin wrote:Yea I'm seeing that there is no concern for customer satisfaction, since they don't care about the quality of their product and the bad rap I see on Honda forums.

Yep, yep. Check out Saber's rating's and customer comments just on this site http://goldwingdocs.com/Vendors/Saber-Cycle_880




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