Steve Saunders Goldwing Forums - View Single Post - Ageing Vacuum Lines on a GL1500

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post #1 of (permalink) Old 07-11-2009, 02:25 PM Thread Starter
N5HQ
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Join Date: Jan 2006
Location: Benton, Arkansas, USA
Posts: 263
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Greetings,

I’ve been searching the archives and I haven’t run across what I need. My 1989 Goldwing with 35,000 miles has developed a problem and I think maybe a second symptom that is related. About three weeks ago I noticed that when I would let off the throttle the RPM’s would not fall like they should. They fall to about 2,000 to 2,200 RPM and just hang there for three or four seconds then slowly drop to idle.

I have also noticed that the cruse control seems to wonder up and down more that it use to. It seems to want to run around 70 to 72 MPH no mater what speed I set it to. I don’t think that would be a very good defense in court so I have to use it much less lately.

I was at Wing Ding 31 in Tulsa last week and talked to Stu in his seminar and his diagnosis was collapsing and/or leaking vacuum lines. I stopped by the local Honda Dealer and spoke with the shop foreman and he provided a schematic of the vacuum lines and I looked at a GL1500 that was in the shop getting the very same thing done to it. Looks like a major teardown and I’m not looking forward to it. I asked how much to have them do it for me and he told me that they weren’t allowed to take in any bike older than a 1993. He also said that they had waited for three weeks for some of the lines to come in for the bike they were working on.

OK, here is my question:

Does anyone know which lines on that age of bike are the problem lines?

I would like to get them on order before I take the bike apart. I really hate the idea of it being laid up for a month or so. I’m planning a cross country trip in September so I need to get this addressed soon.

Thanks for any and all help.

N5HQ

1989 GL1500

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