question about low rpm growl


Information and questions on GL1100 Goldwings (1980-1983)
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f1xrupr
Posts: 396
Joined: Mon Jan 13, 2014 6:13 am
Location: Triplet Va
Motorcycle: 1980 gl 1100 Std. Vetter

question about low rpm growl

Postby f1xrupr » Tue Mar 10, 2015 8:44 am



A 1980 GW .....sound engine-carbs rebuilt-no flat spots-no smoke-starts great-no excessive popping even with modified exhaust-runs even-42 mpg....but, the low rpm growl that the wing is famous for (in a strain below 3000 rpm), is not present until the engine reaches running temp. When then engine is cool, it's smooth throughout operating rpm range. Does you guys bike act like that?


My exercise bike is a goldwing.

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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: question about low rpm growl

Postby WingAdmin » Tue Mar 10, 2015 11:56 am

I suppose it's possible that the primary chain, when warm, expands ever so slightly enough that there is enough slack to allow the vibration? That's just a guess. If it is the case, syncing the carbs may well have a positive effect.

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Dusty Boots
Posts: 573
Joined: Mon Oct 26, 2009 4:25 pm
Location: Alvinston, SW ON
Motorcycle: 1992 GL1500Aspencade

Re: question about low rpm growl

Postby Dusty Boots » Tue Mar 10, 2015 7:22 pm

Sounds to me like your carbs are out of sync.


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