Motor noise


Information and questions on GL1100 Goldwings (1980-1983)
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husker
Posts: 7
Joined: Wed May 29, 2013 1:31 pm
Location: Omaha, Nebraska
Motorcycle: 1982 GL100 Aspencade

Motor noise

Postby husker » Mon Aug 04, 2014 10:21 am



This is hard to explain, but, here goes... At low RPMS the engine has a knocking/popping noise. I notice it when starting off in 1st gear. It dont do it if I start off at higher rpms and slip the clutch a little more. Ive tried higher octane gas and dont think its gas related. It dont sound like its pinging. Im wondering if the timing could be off? I just had the bike tuned up last fall, plugs wires, carbs rebuilt. Any ideas? Thanks.


1982 Goldwing Aspencade 82K on the clock.

husker
Posts: 7
Joined: Wed May 29, 2013 1:31 pm
Location: Omaha, Nebraska
Motorcycle: 1982 GL100 Aspencade

Re: Motor noise

Postby husker » Mon Aug 04, 2014 10:30 am

Here is a picture of my ride. 86400 on the clock.
Attachments
Heres a pic of the ride.
Heres a pic of the ride.
1982 Goldwing Aspencade 82K on the clock.

husker
Posts: 7
Joined: Wed May 29, 2013 1:31 pm
Location: Omaha, Nebraska
Motorcycle: 1982 GL100 Aspencade

Re: Motor noise

Postby husker » Mon Aug 04, 2014 10:32 am

It will also make the noise when in a higher gear.. lower rpms. I can hear/feel the noise when the engine is lugging a little.
1982 Goldwing Aspencade 82K on the clock.

husker
Posts: 7
Joined: Wed May 29, 2013 1:31 pm
Location: Omaha, Nebraska
Motorcycle: 1982 GL100 Aspencade

Re: Motor noise

Postby husker » Mon Aug 04, 2014 10:41 am

I found a similar post.. sounds like carb sync. I guess I need to take it back to the mechanic.
1982 Goldwing Aspencade 82K on the clock.

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Fatwing Chris
Posts: 741
Joined: Thu Oct 21, 2010 6:10 pm
Location: Ont.,Canada
Motorcycle: 2004 ABS Model Goldwing

Re: Motor noise

Postby Fatwing Chris » Mon Aug 04, 2014 10:52 am

husker wrote:I found a similar post.. sounds like carb sync. I guess I need to take it back to the mechanic.


That's what I thought when I read your post.If these things aren't running real good then the chain from the trans main shaft and the output shaft(2 piece spring loaded affair)can make a lot of strange noises.Good thing is that those carbs are pretty easy to get at to sync.Had my old 75(had 1100 carbs on it)synced by a buddy that owns a bike shop and it only took him about 20 mins.
If I'da known it would last this long,I'da taken better care of it.
Chris
Double Dark
Darkside # 1602

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HawkeyeGL1200
Posts: 918
Joined: Sat Jul 05, 2014 11:53 am
Location: Courtland, Va.
Motorcycle: 1984 GL1200 Interstate
1981 GL1100 Interstate

Re: Motor noise

Postby HawkeyeGL1200 » Mon Aug 04, 2014 2:52 pm

husker wrote:I found a similar post.. sounds like carb sync. I guess I need to take it back to the mechanic.

+1 here. I would suggest checking the carb synch. That low RPM bucking is probably the carbs. I would also increase the idle to 950-1000 RPMS.
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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Oldbear
Posts: 289
Joined: Fri Jun 24, 2011 7:02 pm
Location: Linden, Alberta, Canada
Motorcycle: 1983 GL1100A Aspencade

Re: Motor noise

Postby Oldbear » Mon Aug 04, 2014 8:34 pm

And my two cents... buy your own carb balance tool - learn to use it... it will save you money and time. Mine magically fills my shop fridge with beer when people come over to get me to sync their bikes.
My wife is the greatest - she won't let me sell my bike - I'm less grumpy when I ride...

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Oldbear
Posts: 289
Joined: Fri Jun 24, 2011 7:02 pm
Location: Linden, Alberta, Canada
Motorcycle: 1983 GL1100A Aspencade

Re: Motor noise

Postby Oldbear » Mon Aug 04, 2014 8:36 pm

And nice bike - its got a few of the chrome bits I'd like to add to mine.
My wife is the greatest - she won't let me sell my bike - I'm less grumpy when I ride...

ddenney
Posts: 3
Joined: Fri Dec 06, 2013 8:05 pm
Location: Crab Orchard, Kentucky
Motorcycle: 1981 GL1100 Interstate

Re: Motor noise

Postby ddenney » Thu Aug 14, 2014 3:00 pm

I have a 1981 1100 with the same noise. I syncd my carbs and no difference. I think it is the vacuum diaphragm ruptured on the spark advance. I connected a hand vacuum pump to the advance hose and it would not hold vacuum. I then disconnected the hose from the carb and plugged that and it ran a bit better. Hope this helps.

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82aspen
Posts: 122
Joined: Sun Apr 29, 2012 8:23 pm
Location: canuck eh!
Motorcycle: 82 aspencade

Re: Motor noise

Postby 82aspen » Fri Aug 15, 2014 12:39 am

husker wrote:This is hard to explain, but, here goes... At low RPMS the engine has a knocking/popping noise. I notice it when starting off in 1st gear. It dont do it if I start off at higher rpms and slip the clutch a little more. Ive tried higher octane gas and dont think its gas related. It dont sound like its pinging. Im wondering if the timing could be off? I just had the bike tuned up last fall, plugs wires, carbs rebuilt. Any ideas? Thanks.


pretty sure the timing is not adjustable on these

i'd check this but don't think it would be your main problem

husker wrote:This is hard to explain, but, here goes... At low RPMS the engine has a knocking/popping noise. I notice it when starting off in 1st gear. It dont do it if I start off at higher rpms and slip the clutch a little more. Ive tried higher octane gas and dont think its gas related. It dont sound like its pinging. Im wondering if the timing could be off? I just had the bike tuned up last fall, plugs wires, carbs rebuilt. Any ideas? Thanks.


has this problem been there from the tune up carb work? or just appear recently? any other recent changes?

ddenney
Posts: 3
Joined: Fri Dec 06, 2013 8:05 pm
Location: Crab Orchard, Kentucky
Motorcycle: 1981 GL1100 Interstate

Re: Motor noise

Postby ddenney » Wed Dec 10, 2014 9:29 am

I checked the compression and 2 and 4 cylinders were very low on compression I started checking and it seemed to me that the timing belt was one notch off and when I took the head off I discovered the intake valves on each cylinder was bent. I put new valves and timed it and it runs like it should now. Not saying this is everyone else's problem but my wing sounded just like Husker's did.

tomos
Posts: 82
Joined: Mon Dec 23, 2013 7:00 pm
Location: GuelphOntario, Canada
Motorcycle: Gl1100 a 82
suzuki gs400e 82

Re: Motor noise

Postby tomos » Fri Dec 12, 2014 10:07 pm

Hi ,if l may suggest , take out carbs,send them to PISTOL PETES service,install new fuel filter,spark plugs , check out sparkplug cables,contacts .
I have done all the above mentioned and results are more than satisfactory . Our bikes do need proper tune up .
Regards Zoran

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redbug
Posts: 256
Joined: Fri Sep 30, 2011 8:22 am
Location: Broken Arrow,Ok
Motorcycle: 1983 Gl1100I
1986 Harley FLHT

Re: Motor noise

Postby redbug » Sun Dec 14, 2014 12:03 pm

Ok....I turned to the last page to see who dun it, and guess what? Page is missing. So, tell us the happy ending.


" Ridin on Tulsa Time "


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