Need Help on my 1982 Honda Goldwing Gl1100


Information and questions on GL1100 Goldwings (1980-1983)
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bigtime651
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Need Help on my 1982 Honda Goldwing Gl1100

Postby bigtime651 » Mon Oct 17, 2011 11:55 am



My 1982 Honda Goldwing has a knock in it when it idles lower than 2,000 rpms but if at 2,000 rpms and higher no knock . what could this be? It smokes when you first start it up. I have changed oil, changed plugs, cleaned and rebuilt carbs. carbswere not sync but got it close.



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virgilmobile
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby virgilmobile » Mon Oct 17, 2011 3:11 pm

This is assuming that it's not a rod knock. And as long as it's not a bad joke(knock knock) :D I would re-sync the carbs.It's very important that the process is done while keeping the RPM at or near 950.You cannot accurately sync them when the idle is above that.It's amazing what noise it will make when there just a little off.Get it on the money at 950 rpm PERIOD.

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glasshead
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby glasshead » Tue Oct 18, 2011 2:01 pm

I am going to sync my carbs fairly soon, since I have adjusted the valves and have not gotten to the carbs yet. Mine idles just above 1,000 rpms. How do I adjust that down before I start the sync?

rich

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virgilmobile
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby virgilmobile » Tue Oct 18, 2011 2:53 pm

The idle screw is accessible from the right side,rear of carb assembly,just below where the cables hook.

Adjust to 1000 rpm,adjust the front right carb to vacuum match the right rear.re-adjust to 1000 rpm.

Adjust the front left to match rear left.re-adjust to 1000 rpm.

Adjust left bank to match right bank.Re-adjust to 1000 rpm as necessary.and re-test when done.

Final should be 1000 rpm and equal vacuum on all 4 carbs.EXACTLY.

imfree
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby imfree » Thu Oct 20, 2011 5:08 am

Thats not how you sync your carbs .Go to the how to articles ,look for HOW TO SYNC CARBS BY WINGADMIN follow his inst. I did mine just like he says and it runs great average around 45mpg.

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virgilmobile
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby virgilmobile » Thu Oct 20, 2011 7:19 am

imfree wrote:Thats not how you sync your carbs .Go to the how to articles ,look for HOW TO SYNC CARBS BY WINGADMIN follow his inst. I did mine just like he says and it runs great average around 45mpg.


UH....is it because I didn't include the pictures???? The method is correct. RF to RR,then LF to LR,then L to R.

Tell me PLEASE what you read in my previous post that is wrong.This isn't a 'my carb is better than yours' thing.It's about accuracy in procedures and results.

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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby imfree » Thu Oct 20, 2011 8:45 am

Its the 1000 rpms,get it down to 850 and put a fan on the radiator to keep the fan on the bike from coming on as that will make rpms drop,and if that happens then you are wasting your time.

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virgilmobile
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby virgilmobile » Thu Oct 20, 2011 11:03 am

Obviously the tighter the throttle is closed,the more accurate vacuum reading you can achieve for that rpm.However the information I provided was for procedure and acceptable operation.

With that said,If you sync the carbs at 850 rpm,it will preform perfectly at that rpm.

My point is I don't run or have a rattle there.
My rattle occurs above a idle to 1800 rpm.I want the carbs synced to supply the cylinders properly in that range.
Slight differences in compression and carbs upset the balance at different rpm's.

My old 1100 had a 15 psi difference between cylinders.I could balance at 900 but it still rattled,I balanced at 1100 ,the rattle quit,but the idle was a little poor so I compromised and synced at 1000 rpm.
The main idea is to get them as close as possible.On a perfect bike,with the best test equipment,it's a breeze.On a 30+ bike with a cheap meter....well we do the best we can.

shahanj
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby shahanj » Tue Nov 01, 2011 4:17 pm

we have found that putting our 1982 up on the upright stand alleviates the smoke. Ours is real tempermental about leaning for a length of time and will smoke really bad when starting and warming up. Not so when upright.

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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby WingAdmin » Tue Nov 01, 2011 4:40 pm

shahanj wrote:we have found that putting our 1982 up on the upright stand alleviates the smoke. Ours is real tempermental about leaning for a length of time and will smoke really bad when starting and warming up. Not so when upright.


You might have some worn piston rings. Have you checked the compression on your cylinders?

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moffat
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby moffat » Fri Nov 04, 2011 10:01 am

My 1982 GL1100 engine has been totally overhauled at great expense BUT after overhaul I had the same problem in as much that when cold I had a very loud mechanical knock at around 2000 rpm but no knock whilst idling at 950 rpm or above 2000rpm. I found that I had a slight misfire and the bike was running on 3 cylinders at almost exactly 2000 rpm. After changing the sparking plugs it went away. So I must construe the knock was caused by mechanical unbalance at 2000 rpm???
My other machine a 1979 GL1000 sounds like a bag of spanners when idling if carbs or ignition timings are ever slightly out, once its quiet. My GL1100 engine has a primary chain tensioner which my GL1000 doe not have and a lot of knoise seems to come from the primary chain if engine is out of balance for what eveer the reason.
Proir to overhaul the GL1100 had a 1 inch slack in the primary cahin but it did not rattle, the new chain has little slack in it at all and seems to be just the same noise wise -so the primary chain tensioner must have been doing a good job.
Hope this helps

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virgilmobile
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby virgilmobile » Fri Nov 04, 2011 10:11 am

It's good information.
All and all,it boils down to even compression,great spark and equally balanced carbs result in a smooth engine.The amount that any one is out of factory specs , it directly proportional to the amount of rattle and when it occurs.
I guess that when I get questioned about carb syncing,I make the assumption,because of the complexity of fuel systems,that the other systems have been eliminated as a cause of the unbalance.

And yes,a poor ignition coil,plug wire,resistor cap,plug,ignition timing,valve adjustment,valve timing,compression difference,vacuum leak,can all cause a generally bad running bike.

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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby littlebeaver » Fri Nov 04, 2011 3:50 pm

Usually a knock like that is a unbalanced Carb...I agree with Virgilmobile... seems like there's so many different method's to achieve a balance these day's, I say they are all great if they work proper.. I use a four gauge set up and when I check them, one carb is usually off just a little,I check at [950rpm] see once you have them properly in sych. they won't be off too bad next time you check...Good luck, and happy riding... :D I match all three carbs to match the #3 carb...

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moffat
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Re: Need Help on my 1982 Honda Goldwing Gl1100

Postby moffat » Sat Nov 05, 2011 5:10 am

Great advice for you chaps. Its good to know that there is such a good method to communicate and all experiences shared are to the overall good. Keeping these super old bikes :) on the road is so much easier thanks to this forum.




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