Engine noise at idle

Information and questions on GL1100 Goldwings (1980-1983)
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Posts: 30
Joined: Sun May 31, 2020 12:04 pm
Location: United Kingdom
Motorcycle: 1982 gl 1100 naked with sidecar

Engine noise at idle

Post by Harryotransport »

Engine when got it running sounds rattly at idle then when rev it .sounds nice then about 5 - 6000 exhaust does a bit of banging like a backfired.any suggestions

Posts: 131
Joined: Wed Jun 17, 2020 2:14 am
Location: Florida
Motorcycle: 2000 Honda Goldwing GL1500

Re: Engine noise at idle

Post by autonoob »

Have you tried to check the oil level of the bike?
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'80 GL1100 STD Vetter (2005-)
'93 GL1500 Aspencade (2017-)
'83 Trav-Lite Camper (2010-)
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'72 CL350 (1980-1988) sold
'78 Suzuki GS550 (1985-2005) sold
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Re: Engine noise at idle

Post by DenverWinger »

If the carburetors are out-of-sync on the 4 cylinder wings they'll rattle like a bucket of bolts at idle. It's just whatever slack in the primary chain slapping around inside the engine. Doesn't hurt anything, but doesn't sound very good.

Backfiring at revs sounds like a lean carburetor. Maybe a slide is sticking. Or there's numerous other causes for running lean. Sounds like bike needs some carb service. Could try a few tanks of fuel with double-dose of Seafoam or whatever equivalent found in the UK to see if that helps, first.
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