idle on 1990 1500


Information and questions on GL1500 Goldwings (1988-2000)
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notsobright
Posts: 5
Joined: Tue Dec 16, 2014 7:17 pm
Location: Carmel, IN.
Motorcycle: 1990 GL1500se
1982 1100a

idle on 1990 1500

Postby notsobright » Tue Dec 16, 2014 7:44 pm



Hello all
My 1500 1990 model has developed a idle problem when I pull the clutch lever in or put in neutral rpms jump to 2000, then slows down or surges. I have fixed the bad vac hose on manifold going to cruise, is there other common hose that could be causing this or is it something else besides a vacuum leak.?

Thanks



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dingdong
Posts: 2864
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: idle on 1990 1500

Postby dingdong » Wed Dec 17, 2014 8:40 am

Yeah, there is a hose with a 90º bend behind the left carb and under the rubber mat. Very common problem on the 1500. You have to remove the carbs to replace.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

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Mh434
Posts: 944
Joined: Tue Mar 25, 2014 10:24 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1997 gl1500 SE
Previous:
1981 GL1100I
1989 Kawasaki Concours

Re: idle on 1990 1500

Postby Mh434 » Wed Dec 17, 2014 12:38 pm

Definitely sounds like a vacuum leak, alright. I suspect dingdong nailed it.

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redial
Posts: 1993
Joined: Mon Jan 03, 2011 1:17 am
Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: idle on 1990 1500

Postby redial » Wed Dec 17, 2014 9:40 pm

If you are starting to get leaks on these lines, you may as well finish the job and replace all of them. Once you get to the one under the rubber mat, that is probably the most difficult, so go and purchase a length of hose, some elbows, joiners, clamps, and whatever else you need, and go to work. What else are you going to be doing with all the winter ahead :?:
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

notsobright
Posts: 5
Joined: Tue Dec 16, 2014 7:17 pm
Location: Carmel, IN.
Motorcycle: 1990 GL1500se
1982 1100a

Re: idle on 1990 1500

Postby notsobright » Thu Dec 18, 2014 8:35 pm

Thanks for the reply's. I have this problem to deal with Plus fork seals to replace.
I am hoping to tour Colorado next summer so I will work on bike this winter. It is still young with only 158,000 miles on it so far.

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bstig60
Posts: 808
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Location: Nevada City, CA. Jupiter, FL.
Motorcycle: 1999 GL1500AC ASP
1999 Virago XV1100LC
1994 Time Out Camping Trailer
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Re: idle on 1990 1500

Postby bstig60 » Fri Dec 19, 2014 12:48 am

Good advice to replace all the vacuum lines, get yourself a box of elbows and T's and some good quality vacuum hose and go to it.
Bill

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Mh434
Posts: 944
Joined: Tue Mar 25, 2014 10:24 pm
Location: Victoria, British Columbia, Canada
Motorcycle: 1997 gl1500 SE
Previous:
1981 GL1100I
1989 Kawasaki Concours

Re: idle on 1990 1500

Postby Mh434 » Fri Dec 19, 2014 11:32 am

As for the fork seals, have you seen the threads on seal cleaning vs. replacement? If you're not sure they're damaged (if they're just leaking - and from what I can tell, leaking vs. damaged is far more likely) it seems to be an easy & cheap (or free) repair. There's a simple tool you can buy, or make one yourself from a plastic Coke bottle, to remove the crud that's caught in the seals & causing leaks. No disassembly required, either!

Just a thought...




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