engine knock

Information and questions on GL1100 Goldwings (1980-1983)
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twisted injun
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Joined: Tue Jul 15, 2014 5:58 pm
Location: bowling green, oh
Motorcycle: 1981 honda Goldwing bobber

engine knock

Post by twisted injun » Tue Jul 15, 2014 6:21 pm

I have an 81 Goldwing bobber 1100 when it's idling every once in a while I will hear and feel a knock. Just once in a while not all the time. Full of oil and it makes no other sounds when running at different rpm's. New the the wings, so not sure if this is normal or not.

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Joined: Fri Jun 24, 2011 7:02 pm
Location: Linden, Alberta, Canada
Motorcycle: 1983 GL1100A Aspencade

Re: engine knock

Post by Oldbear » Tue Jul 15, 2014 11:17 pm

Are your carbs balanced? Old fuel? My bike tells me its time to sync my carbs by doing the "knock/miss".
My wife is the greatest - she won't let me sell my bike - I'm less grumpy when I ride...

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Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: engine knock

Post by dingdong » Wed Jul 16, 2014 7:15 am

Yup! More than likely primary chain slap due to carbs being out of synch.

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Location: Courtland, Va.
Motorcycle: 1984 GL1200 Interstate
1981 GL1100 Interstate

Re: engine knock

Post by HawkeyeGL1200 » Wed Jul 16, 2014 9:57 am

I could not agree more. That knock that often can be felt through the handle bars is most often fuel related ... mine does it once in a while when I first start and it is running on choke... probably time for me to get out the gauges again too!
I am wrong as often as I am right concerning what is wrong with someone else' motorcycle without having seen the machine in person. Guessing with limited information, as to the source of the trouble, is sketchy at best.

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Johnyy Smoke
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Location: Se Minnesota
Motorcycle: 1980 GL1100
Vetter. "Its like Deja Vu all over again".

Re: engine knock

Post by Johnyy Smoke » Fri Jul 18, 2014 4:38 pm

Carb sync all the way as the others said!
Regards, Johnyy

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Motorcycle: 1980 gl 1100 Std. Vetter

Re: engine knock

Post by f1xrupr » Fri Aug 01, 2014 2:57 pm

That noise will accer any time that engine runs uneven, or luggs down. It is often thought to be the primary chain. However, after rebuilding a .gl 1100, I learnt that the noise is actually produced by the gear driven stator hub. There are 2 gears on the rear of the crank shaft-one drives the primary chain, and the other drives that hub. It's gear chatter, and that hub is relativity heavy......not a problem, but might want to try to avoid letting it happen.

My exercise bike is a goldwing.

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