Vacuum advance?

[Kitten Tooth]

OK, i just had my 1982 GS300L carbs rebuilt for like the 5th time now. I guess i had a blocked jet and i was to scared to pull the jets out myself to find that out. When i got the carbs back from my uncle chad, he said that there was a vacuum advance hose that had to be hooked up to the carbs. I can't find the vacuum advance hose anywhere. When i pulled the carbs out of my running 1982 GS300L, I always just hooked up the fuel line and the vacuum line that both went to the petcock. The bike ran great with just those 2 lines hooked up. So, i was wondeing if the GS300L even had a vacuume advance hose.
Do the carbs have a way of doing the same job as the vacuum advance hose in a different way?

Thanks,
Tim

[Dave8338]

No vacuum advance. CV carbs and my guess is that he is referring to the vacuum hose to the #2 carb that opperates the petcock...

[Kitten Tooth]

Ok, so just hook up those 2 lines that go to the petcock and i should be set then.
I'll post pics when the bike is done.

[rphillips]

GS's have a, how do you spell, cyntrifical advance.

[chef1366]

http://en.wikipedia.org/wiki/Centrifugal_force