Gl1100 Vaccum Advance Adjustment?

Information and questions on GL1100 Goldwings (1980-1983)
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Posts: 9
Joined: Sat Apr 30, 2022 6:44 am
Location: Québec City, Canada
Motorcycle: Gl1100I

Gl1100 Vaccum Advance Adjustment?

Post by Onclefabi »

Hey Everyone,

I'm working on my bike and since I removed the gas tank and the rear wheel, I decided to take a look at my pulse generator, freshly cleaned and lubed but for some reason I suspect that the vacuum advance is beginning to fail.

Once the vacuum diaphragm removed I noticed that there was gasoline in it (only the side going to the #3 carburetor).

Is it normal that gasoline went there? My gut tells me no, but I would be glad to hear your thoughts.

Also, does anyone know what does the little screw on the vacuum unit of the pulse generator. After trying to screw/unscrew, il found little to no difference on the behavior of the whole thing..

I have "ok" acceleration between 1500 to 3500 RPM on that bike and I know that a 1100 would normally have much more response at low revs.. I read from you guys that the vacuum advance tweaks from 10° to 38° the ignition so that must be it..

Thanks for your time, and drive safe !

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