Goldwing GL1100 Aspencade 1983, Cylinder 2 not working


Information and questions on GL1100 Goldwings (1980-1983)
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Tavi
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Location: Sonderborg, Denmark
Motorcycle: Honda Goldwing GL 1100 Aspencade / 1983

Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby Tavi » Fri Sep 27, 2013 12:42 pm



Greetings from Scandinavia (Denmark).
I did buy a GL1100 Aspencade few weeks ago The motorcycle was parked for 3 years and it barely started with the full choke on and couldn't run on idle.
Anyway, I've changed the timming belts, did the valves, changed all the fuel lines + cleaned the gas tank.
After puting back all together I've filled up the tank with fresh gas plus a can of Liqui Molly carburetor cleaner, started the bike and it could hold a rough idle.
Now it's the funny part, at idle I can hear a pretty loud knocking metalic type sound and only cylinders 1,3 and 4 are running, if I accelerate over 1500-1700 rpm the noise is gone completely and it runs pretty ok with small hesitations from time to time.
I've pulled the No. 2 spark plug wire and it give spark against the sparkplug but when I remove the No.2 spark plug it looks like it is not working at all.
The spark plug is not wet, black or other colours it is like it's never been there...
Please help!



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WingAdmin
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Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby WingAdmin » Fri Sep 27, 2013 1:17 pm

It sounds like the idle jet in your #2 carburetor is clogged. This causes that cylinder to not fire at idle, which causes an instability in the firing sequence, which causes the primary chain to whap around inside the case, making that horrible knocking sound. When you accelerate the engine, the idle get is no longer a factor, so the #2 cylinder starts to fire.

I suspect you're going to have to pull the carbs apart and clean them and the jets in order to fix your problem.

Tavi
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Motorcycle: Honda Goldwing GL 1100 Aspencade / 1983

Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby Tavi » Fri Sep 27, 2013 1:32 pm

Thanks a lot WingAdmin, I hope you're right, the sound is quite scary.
As I wrote the spark plug on 2 it looks like new, you can see on the other 3 that are working but not on this one, it's not even get wet...it gets a bit warm dough :-)

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mytown
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Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby mytown » Sat Sep 28, 2013 11:24 pm

Here's a before and after video in which you can hear what I believe is the whapping sound referred to by WingAdmin and then after cleaning the carbs:
[youtube]

[/YouTube]

I suspected the pilot jet on #1 since it ran good above 2K before the cleaning, and pulling the #1 spark plug wire made no difference at idle. I tried several tanks with Seafoam added, but that didn't help so I pulled the carbs and thoroughly cleaned the jets and whatever else I could get at without splitting them. I reused the rubber since it looked OK.

Tavi
Posts: 16
Joined: Fri Sep 27, 2013 12:33 pm
Location: Sonderborg, Denmark
Motorcycle: Honda Goldwing GL 1100 Aspencade / 1983

Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby Tavi » Sun Sep 29, 2013 3:32 am

Hi mytown,

uummm...nope, not really, the sound is pretty much like this one:




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mytown
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Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby mytown » Sun Sep 29, 2013 5:41 am

Ouch. That's more of a knock than a whap. Pretty distinctive. Someone here should be able to identify it. Poster says that he had rebuilt the carbs and adjusted the valves before making the video. Maybe you can contact him, ask him what the noise turned out to be.

Tavi
Posts: 16
Joined: Fri Sep 27, 2013 12:33 pm
Location: Sonderborg, Denmark
Motorcycle: Honda Goldwing GL 1100 Aspencade / 1983

Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby Tavi » Sun Sep 29, 2013 6:56 am

unfortunately I cannot find him. I found this footage on youtube and the posts are disabled, I couldn't find him on any forums I'm watching.
The thing is that the knock on my bike is completely gone above 1500 - 2000 RPM. Also the the knock doesn't modify at all once the clutch is engaged.

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mytown
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Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby mytown » Sun Sep 29, 2013 7:39 am

My noise was a lot louder than it sounds in my video, and other than the loudness, your symptoms are very similar to what I was experiencing. I wouldn't rule out the pilot/idle jet. I doubt the knock heard in the other video completely disappears at any RPM. Can you post a video of yours running? Given your bike's history and the work you've already done, it makes sense to take a good look at the carbs. There are many helpful step-by-step how-tos to be found at the various GW sites. I wasn't sure what my problem was and didn't want to waste a lot of money on kits, so I did my cleaning on the cheap and just focused on the jets and the slides. I found Roady's excellent removal instructions somewhere. I found removing the carbs to be tight but pretty straightforward. Removing two screws will get the tops off and I believe removing 3 screws will get the bowls off. You're there! I recommend using a drill bit on the pilot/idle jet since I had great results doing so. I believe it is a #35 jet, and if it is, I'm almost certain it is #79 bit, .0145" In any case, if and when you get them off, your next step should be to come back here.

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Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby virgilmobile » Sun Sep 29, 2013 1:05 pm

Start the bike from cold.Idle below 1200 rpm for 6 seconds.
Shut it off and lightly tap each header.
The cold one is the dead cylinder.
Find out why.
Compression,spark,fuel.
One of them is wrong.

Tavi
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Location: Sonderborg, Denmark
Motorcycle: Honda Goldwing GL 1100 Aspencade / 1983

Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby Tavi » Sun Sep 29, 2013 2:19 pm

thank you virgilmobile and mytown, found another youtube clip from the same guy who posted the previous one in which he said after carbs cleaning the noise was lost.
I presume my problem is the same as the spark plug in cylinder 2 is not even get wet, of course I will not rule out all the possibilities.
I will post my findings.

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moffat
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Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby moffat » Sat Oct 05, 2013 5:25 am

If the sparking plug is never wet at all then no fuel is getting into the cylinder ? Check that the float valve in the carb is not stuck closed which often happens if a machine has been standing for a while-It happened to me !

Tavi
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Motorcycle: Honda Goldwing GL 1100 Aspencade / 1983

Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby Tavi » Thu Nov 20, 2014 7:31 pm

I know it's an old topic but I forgot to post the finding.
That hammering noise was from the clogged carburetors, once overhauled the noise was gone.

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HawkeyeGL1200
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Re: Goldwing GL1100 Aspencade 1983, Cylinder 2 not working

Postby HawkeyeGL1200 » Fri Nov 21, 2014 10:13 am

Good to be reading that you've resolved your trouble with the Old-wing.

I wanted to add that having those videos, with SOUND, made it a lot easier for me to form an opinion as to what I would suggest to correct (all of them) the problems.... good carb cleaning or rebuilding, fresh gas, filter(s) (air, gas, oil) fresh oil, and a good carb synchronization goes a long way toward getting this old bikes running the way they should.

I suppose any old motorcycle can benefit from all those things, come to think of it...


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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