Help, GL1100 running badly


Information and questions on GL1100 Goldwings (1980-1983)
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seldonca
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Help, GL1100 running badly

Postby seldonca » Mon Apr 01, 2013 10:03 am



It finally got warm enough for me to start working on my new to me ride. I got it started and it was running very poorly, backfiring thru the exhaust and carbs, won't run without the choke full on. I shut her down and ran out and got some seafoam and gave her a healthy dose, ran it long enough to get it into the carbs and let her sit for a couple of days. I went out yesterday and started her up, this was the result http://s940.photobucket.com/user/seldon ... ike?page=1 . The PO said he had just had the carbs rebuilt by a honda shop, could this be sticking floats, am I probably looking at a rebuild on the carbs or could it just be they need to be synced? Any thoughts would be appreciated. Just as an added thought, it does start easily, I don't need to crank it for a long time or anything.



Calzone
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Re: Help, GL1100 running badly

Postby Calzone » Mon Apr 01, 2013 11:03 am

It sure sounds like a carb issue, especially since you need to choke it to run, usually that happens when the main and or idle jets clog up. I don't have much faith in things like "just rebuilt" from anyone.
Might be true but even Honda dealers have mechanics that really aren't familiar with older bike carbs,
Anyways best to do it yourself or send to a qualified goldwing carb rebuilder, there are 3 of them and cost is 300-400 and they are sycronized and ready to install.
If you go the DIY route it is less expensive and if it has truly been rebuilt you can probably reuse the orings and such and just clean it. Many times the little screens under the float seats are neglected, no one seems to know they are there, In other cased they are taken out completely and need replaced. Many things can be going on in a GL1100 carb and removing is the only way to find out.
You didn't mention, was it running right before this?
Good luck.

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Tue Apr 02, 2013 4:08 pm

This is the first time I'e really had it running so I don't know if it was running right before. I did drain out all the gas and replace it with new gas last nite, it seemed to help somewhat. I'm replacing the fuel filter tonite just because I dont know if its ever been done. I'm going to try to drain the float bowls as well and see if that helps.

Calzone
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Re: Help, GL1100 running badly

Postby Calzone » Tue Apr 02, 2013 4:25 pm

It cant hurt I suppose. If you can capture all the gas from the float bowels you should get 50CC`s of fuel from them. The first one you drain will have more because it also will drain the fuel rails but the others should be around 50. You can check the first one by refilling and pulling the screw on the carb next to it first.
I have rebuilt many carburetors from bikes,cars ect and without a doubt these are the most temperamental carbs , they need to be clean and properly sealed and kept that way with clean tank,good seals and a good filter but that said they will go tens of thousands of care free ,trouble free miles.

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Tue Apr 02, 2013 5:31 pm

I've been doing a bit of tinkering with it and I don't think it running on all 4 cylinders. I've been trying to get the shell off so I can get to the coils but not having much luck. I can't find it in my manual. Is the a tutorial or how to on getting it off.

Nevermind, I found it. That's a lot of work just to get at the coils.

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Tue Apr 02, 2013 7:33 pm

I think I'm making some progress, I removed these boots from the spark plug wires. They seemed to be preventing the wires from seating properly on the plugs. I posted a video here of how its running now, http://s940.photobucket.com/user/seldon ... ike?page=1 , its doing better but the rpms rising and dropping like that have me puzzled. I'll keep tinkering tho
Attachments
boots
boots

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trashtruck
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Re: Help, GL1100 running badly

Postby trashtruck » Tue Apr 02, 2013 10:48 pm

have you tried seafoam in the tank yet? worked wonders for me. sounds like a carb issue, either idle jets or floats. sometimes, even a good honda mechanic can miss the oring between the intake and the head and the bike will suck air.
WHAT IS THE SPEED OF DARK?

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Wed Apr 03, 2013 8:02 am

Seafoam was the first thing I tried, I never got around to getting the fuel filter replaced last nite. It started getting cold and an unheated garage is no fun when its cold. I'll try tonite.

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Thu Apr 04, 2013 12:37 pm

I replaced the fuel filter last nite and it seemed to even out the surging, had it running for a bit this morning and it was like something blew itself clear. The rpms raced up and I had to quickly get to the bike to back the throttle off. Its still not perfect but its getting better. :)

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sam6942
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Re: Help, GL1100 running badly

Postby sam6942 » Sat Apr 06, 2013 11:48 am

That is exactly what mine is doing. I've already rebuilt/resynced the carbs, ran seafoam through it, fresh gas, everything.. mine still does that surging you're talking about and still dies without full choke. maybe we can figure this out together!
If a light sleeper sleeps lighter with a light on, does a hard sleeper sleep harder with a hard on?

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trashtruck
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Re: Help, GL1100 running badly

Postby trashtruck » Sat Apr 06, 2013 12:02 pm

keep at it with the seafoam. sometimes it takes 3 or 4 or 5 tanks to clear up some really nasty stuff.
WHAT IS THE SPEED OF DARK?

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sam6942
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Re: Help, GL1100 running badly

Postby sam6942 » Sat Apr 06, 2013 12:22 pm

Alright. I need to get some brake cleaner anyway. Off to WallyWorld it is!
If a light sleeper sleeps lighter with a light on, does a hard sleeper sleep harder with a hard on?

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BigDee
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Re: Help, GL1100 running badly

Postby BigDee » Sat Apr 06, 2013 2:54 pm

Have you tried synching the carbs? That helped mine quite a bit.
He who throws dirt loses ground!

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sam6942
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Re: Help, GL1100 running badly

Postby sam6942 » Sat Apr 06, 2013 9:10 pm

Okay, fresh seafoam in the gas (and oil just cuz). It's stopped the surging as far as I can tell, but still wont idle under 3-4k and dies if I let off the choke with no throttle.

I did notice during the carb rebuild that there seem to be fuel mixture screws on the bottom of each, next to the intake pipes. The originals had plastic heads with flags on them to limit rotation. Of course, I broke one off trying to get it out, and the replacement ones in the rebuilt kit don't have the limiting flags. A buddy of mine was trying to convince me that they don't have mixture screws because "That's why you sync them." Are these the mixture screws I think they are? If so, what do they need to be set to? (I'm sure they should be the same/similar, and I'm also sure they aren't at the moment - I'll fix that after dinner and try it again..)
If a light sleeper sleeps lighter with a light on, does a hard sleeper sleep harder with a hard on?

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trashtruck
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Re: Help, GL1100 running badly

Postby trashtruck » Sat Apr 06, 2013 9:38 pm

for 80/81 the initial idle screw setting should be 1+1/2 turns out from lightly seated. for 82/83 it's 3 turns. if you plan on replacing your old ones, count the number of turns it takes to lightly seat them then remove screws, springs washers and rubber orings inside. the kit should have replacement parts. the manual describes the idle drop adjustment to make before final sync.
WHAT IS THE SPEED OF DARK?

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Sat Apr 06, 2013 10:54 pm

I went and got some Gumout today and put it in the tank. I ran it for about15 minutes and shut her down. I just went out and ran her for another 15 minutes. It seems to have helped somewhat. I was able to back the choke a little bit but not much. What controls when the idle jets are on, throttle position or rpms? When I was running it just now I had the throttle fully closed,with the choke full on. It was idlong at around 2500 rpm. Would the idle jets be in use like this?

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Mon Apr 08, 2013 6:47 pm

I've come to the conclusion that the carbs need to be rebuilt. I'm not very mechanically inclined and I'm debating which would be best, buy the Randakks kit and pay someone to rebuild them which would probably cost me between 5 and 6 hundred dollars or buy a single carb conversion kit which would end up costing about the same. Any thoughts on what would be the best option?

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trashtruck
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Re: Help, GL1100 running badly

Postby trashtruck » Mon Apr 08, 2013 6:51 pm

if you're not comfortable doing it yourself, pistol pete is the man.
WHAT IS THE SPEED OF DARK?

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seldonca
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Re: Help, GL1100 running badly

Postby seldonca » Mon Apr 08, 2013 7:05 pm

I believe in knowing your limitations. I feel comfortable with doing the timing belts and replacing the exhaust system but I'm not comfortable with the carbs. It even says on the Randakks site that the kits are intended for professional mechanics which I'm a long way from being. :) I've been trying to find a web site for him without any luck, does anyone know if there is one?

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Joecop
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Re: Help, GL1100 running badly

Postby Joecop » Mon Apr 08, 2013 7:34 pm

Just my two cents but if it was me I'd go with a single carb set up. But there are drawbacks, a loss of some power and carb icing.

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Re: Help, GL1100 running badly

Postby WingAdmin » Thu Apr 11, 2013 9:39 pm

seldonca wrote:I believe in knowing your limitations. I feel comfortable with doing the timing belts and replacing the exhaust system but I'm not comfortable with the carbs. It even says on the Randakks site that the kits are intended for professional mechanics which I'm a long way from being. :) I've been trying to find a web site for him without any luck, does anyone know if there is one?


You can find his website here: http://www.oldwings.com/

He's a great guy, I met him at Wing Ding last summer, and boy does he know his carbs. You won't be disappointed.

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twisp-jd
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Re: Help, GL1100 running badly

Postby twisp-jd » Fri Jul 05, 2013 3:41 pm

I just had mine done by Pete & moose @ Pistol Petes Services in Oliver Springs Tn. The best money Ive spent on the 80 1100. I too was considering a single carb, but after reading these forums, I decided to bite the bullet and go for it. Unbelievable power, and an extra 5 mpg too. Great guys, excellent job, good price, fast turnaround, and they even run your carb set on there motor and sinc them too. I checked the sinc once I put them back on and they were right on evenly balanced. Good luck what ever you deside


patience is a virtue we must wait for


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