Start up issue


Information and questions on GL1500 Goldwings (1988-2000)
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754
Posts: 103
Joined: Fri Sep 08, 2017 9:08 am
Location: Clermont Ga
Motorcycle: 1992 GL1500 Interstate

1978 CB750 Supersport

Start up issue

Post by 754 » Sat May 25, 2019 12:26 pm



Good afternoon all,

As many of you have read I have some issues with the carburetors on my machine, that issue has been sorted and the seem to work well now. But now I have a new issue, when I start the bike regardless of how long it has sat it seems to have a stumble until it warms up. It is subtle you, have to have a keen ear to notice it, after about a minute or so on high idle it will idle but still with that stumble. After about a minute or so and after it has warmed up it will run just as is it should no stumble after that. If you listen carefully you can hear the sound at idle change when the engine picks up and runs right. I'm not exactly sure what is up with it, sticking lifter maybe? The carburetors are clean and work perfectly, they do need balanced sill.

Anyone else have an idea? It's not a big deal to me, it runs great once warm I just want to work out the last kink.

Thanks everyone.

Travis


1992 Goldwing Gl1500 Interstate

1978 CB750 Supersport

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virgilmobile
Posts: 9050
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Start up issue

Post by virgilmobile » Tue May 28, 2019 12:01 pm

I always sync the carbs after service.Easiest thing to do first thing after it's back together.
You need a looooong screwdriver on the right side to get to it.
Also..when you "did" the carbs..did you also tend to those pesky vacuum lines??Even the one below the black mat?

User avatar
754
Posts: 103
Joined: Fri Sep 08, 2017 9:08 am
Location: Clermont Ga
Motorcycle: 1992 GL1500 Interstate

1978 CB750 Supersport

Re: Start up issue

Post by 754 » Tue May 28, 2019 1:38 pm

I have not had a chance to balance the carburetors yet as I have not had much chance to ride recently, that is on the agenda for this week. And in reference to the vacuum lines, I have replaced 99% of all the small lines. I got all of them from Honda because of size and bends, the only ones not replaced were because I could not get to them. And actually my wing used to have an idle surge of a couple hundred RPM's now there is no surge and it idles nicely.

Travis
1992 Goldwing Gl1500 Interstate

1978 CB750 Supersport

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