GL1100 running poorly


Information and questions on GL1100 Goldwings (1980-1983)
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estage
Posts: 6
Joined: Sun Nov 08, 2009 7:40 pm
Location: Mount Vernon, Ohio
Motorcycle: 1983 GL1100 Interstate

GL1100 running poorly

Postby estage » Tue Aug 09, 2011 7:36 pm



I hope that someone out there can help. I took my 83 GL1100 to my mechanic to have some work done. Quite a bit of work actually. One of those items was having the timing belts replaced, as I did not know if they have ever been replaced or not. The bike was running good when i took it in, with a smooth idle, plenty of power and about 47MPG. When I got it back, i noticed that my mileage was not as good, about 28MPG, and idled about 1300 rpm, instead of 950. I also noticed a slight ticking noise when i reached about 3k rpm. I took the bike back to the mechanic, who said that my carbs needed worked on. He supposedly reworked the ports, but the bike still had poor mileage and NO top end power. I had a hard time getting it to 70mph on the freeway (was on a trip in West Virginia, where freeway speed is 70) I talked with several other bike owners, describing my problems, and was told my timing was out. Can anyone verify this? I want to get this fixed right before something gets trashed, like a valve or something.



User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: GL1100 running poorly

Postby virgilmobile » Wed Aug 10, 2011 8:48 am

All it takes is one tooth off on one cam to really upset that motor.Pull the covers and look for yourself.

User avatar
RBGERSON
Posts: 2625
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: GL1100 running poorly

Postby RBGERSON » Wed Aug 10, 2011 9:34 am

check timing, valves and what does rework ports mean..sounds like this guy doesn't know Wings..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

estage
Posts: 6
Joined: Sun Nov 08, 2009 7:40 pm
Location: Mount Vernon, Ohio
Motorcycle: 1983 GL1100 Interstate

Re: GL1100 running poorly

Postby estage » Wed Aug 10, 2011 9:41 am

that is what i thought, as far as the timing goes. as far as the ports are concerned, maybe it wasn't reworking the ports but had to do something with them. don't know. all i know is that it cost me $100 to not get any improvements done. it took a almost a quarter tank of gas to go 17 miles. this guy worked for a Honda dealer for 20 years, working mostly on wings, before getting let go. i am begining to think that maybe his work is the reason he got let go. he seems to want to rush through the repairs. i am not a mechanic, but think i could do better. thanks again for your help.

User avatar
bcassel
Posts: 90
Joined: Sat Sep 25, 2010 10:57 pm
Location: Woodland, CA
Motorcycle: 1982 GL1100 Interstate. Originally Candywine color, now Chrysler Cool Vanilla.

Re: GL1100 running poorly

Postby bcassel » Thu Aug 11, 2011 9:57 am

I just replaced my timing belts and ended up one cog off on the left side belt. Ran okay (+/-) but only got 39 mpg. I found a small leak in the radiator and while it was off I decided to check the belt job, just in case. Well, that's when I found the right side off one cog. So I addressed that, put it all back together, with the patched radiator and checked the valve lash on the left side.

Noticeable improvement in the engine performance. Now it feels RIGHT!

So, the bike will run with it one cog off, and I'd assume it would probably run with one off on each side, but the performance would be about what you experienced.

estage
Posts: 6
Joined: Sun Nov 08, 2009 7:40 pm
Location: Mount Vernon, Ohio
Motorcycle: 1983 GL1100 Interstate

Re: GL1100 running poorly

Postby estage » Thu Aug 11, 2011 3:00 pm

well, got the bike back last night. He said that the carbs were out of sync and the lifters on the right side needed adjusted. Duh!! My question is: Why did he send the bike back to me with those problems? (I still think the timing was off and he just didn't want to admit it.) Anyway, went on a ride today, about 50 miles worth, and it seems to finally be running right. My wife said that she could still hear a "ticking" noise, but I don't know what that could be. I will see how it goes. Thanks again for all your wisdom.

estage
Posts: 6
Joined: Sun Nov 08, 2009 7:40 pm
Location: Mount Vernon, Ohio
Motorcycle: 1983 GL1100 Interstate

Re: GL1100 running poorly

Postby estage » Tue Aug 16, 2011 2:57 pm

here is a followup. I have my accelleration back, but the mileage is still very poor. i have driven it about 100 miles after a fill-up, and it has used almost 3/4 tank of gas. I don't know what the mechanic did to cause this, but i am looking for a solution. Does anyone have any ideas as to what could be causing such poor mileage. i have to go almost 50 miles to work and this will cost me a fortune. HELP!!!!!

User avatar
virgilmobile
Posts: 7663
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: GL1100 running poorly

Postby virgilmobile » Tue Aug 16, 2011 3:51 pm

Pull a plug and scrutinize it's condition.eg.black,wet,light brown,etc.If there sooty black,the choke may not be releasing all the way,It's spring loaded and cable adjustable.With the choke lever off,there should be just a little slack in the cable.
Let's see...3/4 tank is about 3 gallons and 100 miles..hmmmm ...33 miles to a gallon? Remember,this ain't no 100mpg Vespa scooter.Fuel economy can vary greatly.I've had 1000,1100&1200 range from 28 to 42 mpg.
But pull a plug and look first,even better...all 4 to check each cylinder.I suppose if the float level is too high or idle jet is mis-adjusted even on one carb it will burn rich and lower economy and still run great.
The plugs will tell the tale.Post a picture of the plugs for those of us that have difficulty.

Oh,by the way,it does have mechanical lifters so some 'ticking' is normal and expected.Clattering is not normal.I can hear mine tick with a half helmet but not so much with a full helmet.
My 1200 has 0 lash hydraulic lifters and is near dead quiet as far as valve noise.It's the nature of the beast,and every one is a little different.

estage
Posts: 6
Joined: Sun Nov 08, 2009 7:40 pm
Location: Mount Vernon, Ohio
Motorcycle: 1983 GL1100 Interstate

Re: GL1100 running poorly

Postby estage » Tue Aug 16, 2011 8:49 pm

virgilmobile, i will do that. i am sure it is just a small adjustment, as i used to get a little over 250 miles on a tank, which is really good (average 47.16 mpg) i am not sure just why the mechanic messed with it in the first place. i will try to get the plug pics in the next couple of days.




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