94 1500SE-Both carb slides not working- please help!


Information and questions on GL1500 Goldwings (1988-2000)
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whitewhale
Posts: 6
Joined: Mon Sep 21, 2015 11:54 pm
Location: Sherwood Park,Alberta,Canada
Motorcycle: 1993 Goldwing 1500 SE

94 1500SE-Both carb slides not working- please help!

Postby whitewhale » Wed Aug 31, 2016 11:37 am



For the last month I have an issue with my wing becoming gutless sometimes after a bump or just out of the blue. I would work the throttle a little and sometimes it would clear up. This last time it didn't clear up. I removed my air filter and discovered that both slides would not slide with the moving of the throttle.
Now a little background. Carbs were 'rebuilt' last fall by a shop. This year I have put on at least 10 to 12 thousand kms (6200-7500miles). Fuel filter recently replaced. Tank is clean. All air filters replaced (includes sub filter). Ran SeaFoam through the tank and directly in the tank. Looked at vacuum lines, they look good, nothing kinked. I took the carbs off last night and looked at the diagrams, they look good still. No holes
I would appreciate any and all help you can supply.



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ct1500
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Re: 94 1500SE-Both carb slides not working- please help!

Postby ct1500 » Wed Aug 31, 2016 4:19 pm

Lite throttle application while stationary will not move the slides, it must be opened wide and fast briefly without over revving the engine for them to move.
This is what I do
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whitewhale
Posts: 6
Joined: Mon Sep 21, 2015 11:54 pm
Location: Sherwood Park,Alberta,Canada
Motorcycle: 1993 Goldwing 1500 SE

Re: 94 1500SE-Both carb slides not working- please help!

Postby whitewhale » Wed Aug 31, 2016 4:59 pm

[Lite throttle application while stationary will not move the slides, it must be opened wide and fast briefly without over revving the engine for them to move.]

As far as throttle application, I did try various speeds. There was just no movement on the slides. They are the black teflon slides, if that makes a difference. Also they look to be slightly scuffed as well. It just seems to be no pull working the slides.

Hope this makes sense? Thank you in advance for any help.

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Aussie81Interstate
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Re: 94 1500SE-Both carb slides not working- please help!

Postby Aussie81Interstate » Wed Aug 31, 2016 5:03 pm

Spray some carb cleaner directly onto both of the slides while the bike is running and then rev the bike with several sharp twists of the throttle - keep spraying and twisting the throttle - hopefully the slides will start moving smoothly again.. this can also take a few minutes to fully smooth them out - if the problem persists - you may need new slides- or if the slides do not move at all - they could have been assembled incorrectly.

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ct1500
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Re: 94 1500SE-Both carb slides not working- please help!

Postby ct1500 » Wed Aug 31, 2016 5:08 pm

Both slides to be dead would be very rare and will not cause an intermittent problem, if not working now problem would be consistent.

You are not opening throttle enough. From idle open throttle fully and fast then back off when engine revs to 3.5-4k or so.
Last edited by ct1500 on Wed Aug 31, 2016 5:13 pm, edited 2 times in total.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

whitewhale
Posts: 6
Joined: Mon Sep 21, 2015 11:54 pm
Location: Sherwood Park,Alberta,Canada
Motorcycle: 1993 Goldwing 1500 SE

Re: 94 1500SE-Both carb slides not working- please help!

Postby whitewhale » Wed Aug 31, 2016 5:10 pm

I will do that with the carb cleaner. I got a little ahead of myself and took the carbs out. So they are on the bench. Just don't really want to break into them if it is not required. Somewhere on this forum, I read that the coolant temp sensor (found in the intake manifold on the right side) can be a reason for this problem?. Any thoughts?

whitewhale
Posts: 6
Joined: Mon Sep 21, 2015 11:54 pm
Location: Sherwood Park,Alberta,Canada
Motorcycle: 1993 Goldwing 1500 SE

Re: 94 1500SE-Both carb slides not working- please help!

Postby whitewhale » Wed Aug 31, 2016 5:13 pm

ct1500 wrote:Both slides to be dead would be very rare and will not cause an intermittent problem, if not working now problem would be consistent.

You are not opening throttle enough.


I understand what you are saying, but they now will not move with the throttle at all. The symptoms were off and on, but progressed to be all the time now.

whitewhale
Posts: 6
Joined: Mon Sep 21, 2015 11:54 pm
Location: Sherwood Park,Alberta,Canada
Motorcycle: 1993 Goldwing 1500 SE

Re: 94 1500SE-Both carb slides not working- please help!

Postby whitewhale » Wed Aug 31, 2016 5:17 pm

I am really not convinced the carbs were rebuilt correctly last fall. I was concerned that I may have vacuum problem in and around the carb itself.

whitewhale
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Joined: Mon Sep 21, 2015 11:54 pm
Location: Sherwood Park,Alberta,Canada
Motorcycle: 1993 Goldwing 1500 SE

Re: 94 1500SE-Both carb slides not working- please help!

Postby whitewhale » Sat Oct 01, 2016 4:04 pm

Well, after much pain and anguish, I found out the problem I had with bike. It turns out that both diaphragms were not properly sealed on the edges. It just took some time for them to completely come apart. The conditions progressively got worse and worse, to the point where it just ran poorly all the time. The bike is running great now. Now I realize how much top end there is as well and better millage. Thanks for everyone's help in this matter.




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