1980 GL1100 Carb Rebuild in progress -
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
1980 GL1100 Carb Rebuild in progress -
Last weekend I learned how to remove the carbs from the GL1100 Interstate we acquired last fall. This bike is my sons first Goldwing and it is a real beauty but over the winter and this spring we have found a lot of 'deferred' maintenance by the previous owner. Things like low or no brake fluids, rear drive flange splines worn to the point of needing replacing, brakes worn out, calipers needing rebuilds, etc. etc.
Now that all of these things are completed the next step was to address what I believed to be a rich running condition...
The bike always smelled like it was running rich , and only delivered 33 to 35 MPG regardless of riding conditions. I felt that this was sub-standard and that we should be seeing more like 40 MPG from this bike with careful throttle control maybe more...
When we removed the carbs I found them to be in poor condition. Very dirty externally and internally. After a few courses through the ultrasonic cleaner we have been able to really make the carbs look right. One of the things I found was a broken idle adjustment screw and all 4 of them were turned out 2 + turns..? As I have read the manual(s) and tutorials I think the 80's should be at 1-1/4 turns out so this would account for much of the rich running condition...? Right..? Carb floats will be carefully checked for proper adjustment as well...
New idle adjustment screws have arrived with the rebuild kits we ordered and these will go in at the prescribed 1-1/4 turns. A bench synch should get it running and then after we get the bike running a vacuum synch with the 4 guage manometer...
Should there be any need to adjust valves even though I did them previously..? If so should we do them before the carb replacement or maybe after we get it running again..? The bike SOUNDS good once it is warmed up even when it was running rich...but I am just wondering..(probably overthinking this one) ...
Your comments are welcomed....
Now that all of these things are completed the next step was to address what I believed to be a rich running condition...
The bike always smelled like it was running rich , and only delivered 33 to 35 MPG regardless of riding conditions. I felt that this was sub-standard and that we should be seeing more like 40 MPG from this bike with careful throttle control maybe more...
When we removed the carbs I found them to be in poor condition. Very dirty externally and internally. After a few courses through the ultrasonic cleaner we have been able to really make the carbs look right. One of the things I found was a broken idle adjustment screw and all 4 of them were turned out 2 + turns..? As I have read the manual(s) and tutorials I think the 80's should be at 1-1/4 turns out so this would account for much of the rich running condition...? Right..? Carb floats will be carefully checked for proper adjustment as well...
New idle adjustment screws have arrived with the rebuild kits we ordered and these will go in at the prescribed 1-1/4 turns. A bench synch should get it running and then after we get the bike running a vacuum synch with the 4 guage manometer...
Should there be any need to adjust valves even though I did them previously..? If so should we do them before the carb replacement or maybe after we get it running again..? The bike SOUNDS good once it is warmed up even when it was running rich...but I am just wondering..(probably overthinking this one) ...
Your comments are welcomed....
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- 80-GL100-INT
- Posts: 162
- Joined: Sun Mar 17, 2013 8:53 pm
- Location: Bedford, In.
- Motorcycle: 1980 GL1100I Interstate (current)
Previously Owned:
1981 CB 750 Custom
1976 CB 750 Super Sport (punched to 900)
1986 Kawasaki 440 LTD
1974 Suzuki 550
1986 Kawasaki Ninja 600 (First Street Bike-way back in '88) - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
1 1/4 turns is just a recommended starting point. Fine tuning while syncing might very well bring them 2+ turns out, may also be 1/4 turn out as well, just depends on where everything sets when optimum tuning is complete.
I don't think it would ever hurt to recheck the valves, especially if you have had it up to temp. since last adj.. They rolled off the assembly line with feeler gauges in the tool kit for a reason and it's easy enough to do.
I don't think it would ever hurt to recheck the valves, especially if you have had it up to temp. since last adj.. They rolled off the assembly line with feeler gauges in the tool kit for a reason and it's easy enough to do.
If "WE THE PEOPLE" don't defend our rights...Who will?
"Government's first duty is protect the people, not run their lives."...Ronald Reagan
http://www.powdercoat.tk/
"Government's first duty is protect the people, not run their lives."...Ronald Reagan
http://www.powdercoat.tk/
- virgilmobile
- Posts: 9087
- 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: 1980 GL1100 Carb Rebuild in progress -
Also,before you put the carbs back on the bike....Attach a shop vac to the engine side of each carb in turn....Operate the throttle and look at each slide...verify they do actually slide up as the throttle is opened.
They may not go all the way to the top but should move equally the same....nice and smooth.....
I found one sticking on mine after a complete service....Just rotating the cap 180* fixed it...
If your really anal...You can fill the carbs by the fuel line to be certain they don't leak and drain each carb and measure the amount of gas in each one....I did find on a Oooold bike that 1 carb had more gas than the others...It ran funny too....A minor adjustment fixed that problem too.
The wrong fuel level affects the running mixture...I had to lower the floats by just 2mm. in my 88 to clear a rich condition from idle to 1200 rpm....(i changed the slow jets)
They may not go all the way to the top but should move equally the same....nice and smooth.....
I found one sticking on mine after a complete service....Just rotating the cap 180* fixed it...
If your really anal...You can fill the carbs by the fuel line to be certain they don't leak and drain each carb and measure the amount of gas in each one....I did find on a Oooold bike that 1 carb had more gas than the others...It ran funny too....A minor adjustment fixed that problem too.
The wrong fuel level affects the running mixture...I had to lower the floats by just 2mm. in my 88 to clear a rich condition from idle to 1200 rpm....(i changed the slow jets)
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
Should one "lube" the slides with anything on reassembly..?
When I did the 650 I used a light oil ...but I don't think it was necessary....
When I did the 650 I used a light oil ...but I don't think it was necessary....
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- virgilmobile
- Posts: 9087
- 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: 1980 GL1100 Carb Rebuild in progress -
Everybody says absolutely no lube on the slides.Dust sticks to it.
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
Thanks - That's good information..This is my 2nd ever carb rebuild and I learn something everytime I do one...virgilmobile wrote:Everybody says absolutely no lube on the slides.Dust sticks to it.
The 650 seems to be working just fine right now although I have it running a little rich and the carb synch seems a bit off...
But that bike had not run in YEARS and YEARS so gettin it going was exciting...
I will go back & retune that one once the GL1100 is finished....
It will be nice to see what my son says about it once it is running well...

Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- virgilmobile
- Posts: 9087
- 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: 1980 GL1100 Carb Rebuild in progress -
I also suggest that you do a mechanical sync of the throttle valves while there off the bike
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
Bench synch...? Of the butterflys...? Are we talking the same thing...?virgilmobile wrote:I also suggest that you do a mechanical sync of the throttle valves while there off the bike
[attachment=0]52static1.jpg[/attachment]
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- 80-GL100-INT
- Posts: 162
- Joined: Sun Mar 17, 2013 8:53 pm
- Location: Bedford, In.
- Motorcycle: 1980 GL1100I Interstate (current)
Previously Owned:
1981 CB 750 Custom
1976 CB 750 Super Sport (punched to 900)
1986 Kawasaki 440 LTD
1974 Suzuki 550
1986 Kawasaki Ninja 600 (First Street Bike-way back in '88) - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
This is not being anal...This is a good idea for any carb rebuild. I have an old gas tank off of a riding mower that I built a stand for, fuel line w/petcock drops down to plug into just about any carb, gravity feeds it so that I can fill them and check for leaks. It's been in storage for about a year (from a move) and I just recently cleaned out the unit. As soon as I get it dug out of the box it's hiding in I'll post a pic. I need to do it soon as I'm in the middle of a rebuild on mine too.virgilmobile wrote:If your really anal...You can fill the carbs by the fuel line to be certain they don't leak and drain each carb and measure the amount of gas in each one....I did find on a Oooold bike that 1 carb had more gas than the others...It ran funny too....A minor adjustment fixed that problem too.
The wrong fuel level affects the running mixture...I had to lower the floats by just 2mm. in my 88 to clear a rich condition from idle to 1200 rpm....(i changed the slow jets)
If "WE THE PEOPLE" don't defend our rights...Who will?
"Government's first duty is protect the people, not run their lives."...Ronald Reagan
http://www.powdercoat.tk/
"Government's first duty is protect the people, not run their lives."...Ronald Reagan
http://www.powdercoat.tk/
- virgilmobile
- Posts: 9087
- 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: 1980 GL1100 Carb Rebuild in progress -
Yup.pre adjust.easier to do a vacuum sync later.
Bench synch...? Of the butterflys...? Are we talking the same thing...?
[attachment=0]52static1.jpg[/attachment]
[/quote]
Bench synch...? Of the butterflys...? Are we talking the same thing...?
[attachment=0]52static1.jpg[/attachment]
[/quote]
- SteveB123
- Posts: 842
- Joined: Thu Apr 05, 2012 9:29 am
- Location: Winchester, Ontario, Canada
- Motorcycle: 1982 1100I, 60A Poorboy, MSD coil
Re: 1980 GL1100 Carb Rebuild in progress -
http://www.ngwclub.com/forum/viewtopic.php?t=12168
This was my go-to resource when I did mine.
Minor differences as you've got pressed in idle jets, but the basics are VERY well covered here.
This was my go-to resource when I did mine.
Minor differences as you've got pressed in idle jets, but the basics are VERY well covered here.
Current:82 GL1100 Interstate, 60 Amp Poorboy, MSD coil
Previous: 93 GSX1100F Katana
82 GL500 Silverwing
Previous: 93 GSX1100F Katana
82 GL500 Silverwing
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
It RUNS !
Problem areas :
Idle adjustment screws set wrong - 1 broken
Floats set at ..? Way to much...
Now floats are dead on at 15.5 ....
The results...? First crank video below....Watch my son and I as we get his 'Wing going...
(Many thanks to those who offered opinions and guidance...)
[youtube]
Never miss a video: Subscribe to the GoldwingDocs YouTube channel today!

Problem areas :
Idle adjustment screws set wrong - 1 broken
Floats set at ..? Way to much...
Now floats are dead on at 15.5 ....
The results...? First crank video below....Watch my son and I as we get his 'Wing going...
(Many thanks to those who offered opinions and guidance...)

[youtube]
Never miss a video: Subscribe to the GoldwingDocs YouTube channel today!
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- virgilmobile
- Posts: 9087
- 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: 1980 GL1100 Carb Rebuild in progress -
You did we'll ( except the hi 5 part) but I think you we're excited too,twisting the throttle and all. 

- RBGERSON
- Posts: 3233
- Joined: Tue Mar 09, 2010 7:57 am
- Location: SCOTTSDALE, AZ
- Motorcycle: 98 SE GL 1500
had every year from 75 to 83
Re: 1980 GL1100 Carb Rebuild in progress -
Idle screw broke?? if the tip broke off in the carb you've got issues..usually the carb is trash because teh tip is stuck in the carb???..so what broke exactly.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE
FAIR WINDS,
RB
NOW INTO 1500'S..RIDING A 1998 SE
FAIR WINDS,
RB
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
The 'head' ...The tip that sticks out with the screw and limiter cap on it.RBGERSON wrote:Idle screw broke?? if the tip broke off in the carb you've got issues..usually the carb is trash because teh tip is stuck in the carb???..so what broke exactly.
I carefully cleaned and inspected the carbs while they were disassembled and I know those holes are open...
I DID have to use a reverse drill screw take out to get it out -- but it came out easy once I got a bite on it.
But because it was broken it was not adjustable in any way...So I ordered 4 new ones instead.
The next issue is the hard starting - the starter turns over slowly and with some difficulty , actually pulling the battery down even though the battery is brand new..I think we will pull the starter and clean it up ...and check the ground for connectivity...
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
You noticed....virgilmobile wrote:You did we'll ( except the hi 5 part) but I think you we're excited too,twisting the throttle and all.

HA ha ha ha ha .....I can't believe how quickly that thing NOW throttles UP to 6000 RPM....
Before the cleaning it wouldn't do that without bogging down....
It will get even better once we get to vacuum synch (although the bench synch worked pretty well)
And then to RUN IT...!
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- virgilmobile
- Posts: 9087
- 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: 1980 GL1100 Carb Rebuild in progress -
The 1100 starter has 3 bushings and a planetary gear drive.there usually not difficult to service and moly lube.
Keep us up to date.
Keep us up to date.
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
As we worked last night toward the carb re-install ( a PIA in my opinion) we discussed this bike...virgilmobile wrote:The 1100 starter has 3 bushings and a planetary gear drive.there usually not difficult to service and moly lube.
Keep us up to date.
It is getting better & better as we work towards completing the "deferred" maintenance that the Previous owner simply didn't do.
(I think his job was affected and he couldn't afford to do it).
But since we got it last fall....
All new caliperm rebuilds, brakes and Master cylinders
All fluids - radiator - brakes - oils - final drive -- etc.
New Spark Plugs - New air filter -
New driven flange
New Travelcade seat
Rewired all the electronics
New fuse box rewire & replacement upgrade to blade fuses
Added Lighting
Added J & M CB radio -new antenna(s)
New Tires -
New hard cover on right hand pocket (replacing cracked one)
Some polishing and waxing
The list seems to go on & on....But the bike is getting closer to perfect every time we do something....
Starter refresh - cleaning --Next on the list
Then find and replace the weather stripping on the saddlebags...

Carb Cleaning & rebuild
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
-
- Posts: 144
- Joined: Sun Aug 05, 2012 8:46 pm
- Location: Milwaukee, Wisconsin
- Motorcycle: 1980GL1100 NICE!
Re: 1980 GL1100 Carb Rebuild in progress -
Hey Wingsconsin,
I too have a '80 wing and I do get about 40 mpg if I don't drive hard and go 60-65 mph. I don't run ethanol but not sure if you can get the regular gas in Sussex. The '80's 1100's are geared lower, almost 4000 RPM at 60 mph, the newer ones pull about 70 mph at 4000 rpm. I have changed, replaced or serviced: belts, fuel lines and filter, pulled the radiator and replaced hoses and anti-freeze, spark plugs,wires and caps, stainless steel brake lines, serviced final drive, etc. I was having problem getting my carbs to sync so pulled them off and did some minor cleaning and bench synced. The bike runs so good and idles great. I don't plan on trying to sync with mercury gauges. I am looking at the progressive springs for the forks next. Sometimes the starter labors a bit but the more I ride the bike the less it seems to be an issue. I have run 2 tanks of Seafoam through it and admit that I think it helped. I have also run 4-5 oz of ATF in the gas and do think that the bike runs noticeably stronger.
( guy that I rolled on with a "hot" Harley Big Twin would agree with the stronger statement) I am not sure why the ATF adds to the performance but I am not complaining. These are really nice old bikes!
P.S. My pilot valves are out 2 turns and check the 3 yellow wires that go to the stator.
I too have a '80 wing and I do get about 40 mpg if I don't drive hard and go 60-65 mph. I don't run ethanol but not sure if you can get the regular gas in Sussex. The '80's 1100's are geared lower, almost 4000 RPM at 60 mph, the newer ones pull about 70 mph at 4000 rpm. I have changed, replaced or serviced: belts, fuel lines and filter, pulled the radiator and replaced hoses and anti-freeze, spark plugs,wires and caps, stainless steel brake lines, serviced final drive, etc. I was having problem getting my carbs to sync so pulled them off and did some minor cleaning and bench synced. The bike runs so good and idles great. I don't plan on trying to sync with mercury gauges. I am looking at the progressive springs for the forks next. Sometimes the starter labors a bit but the more I ride the bike the less it seems to be an issue. I have run 2 tanks of Seafoam through it and admit that I think it helped. I have also run 4-5 oz of ATF in the gas and do think that the bike runs noticeably stronger.
( guy that I rolled on with a "hot" Harley Big Twin would agree with the stronger statement) I am not sure why the ATF adds to the performance but I am not complaining. These are really nice old bikes!
P.S. My pilot valves are out 2 turns and check the 3 yellow wires that go to the stator.
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
Thanks tunaboy for the encouragement ...
Got the carbs synched tonight ...
I really want to clean the starter now...
So the test ride is gonna have to wait..idle adjustment screws out 1-1/2 turns...
Synching was tough ...much trial and errors to get it right
Synching 1-3 and 2-4 was easy but left to right ....
Got it really close and thats gonna have to be good enough...
Racecar running will be soon ...!!!
.
Got the carbs synched tonight ...
I really want to clean the starter now...
So the test ride is gonna have to wait..idle adjustment screws out 1-1/2 turns...
Synching was tough ...much trial and errors to get it right
Synching 1-3 and 2-4 was easy but left to right ....

Got it really close and thats gonna have to be good enough...
Racecar running will be soon ...!!!
.
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
- Wingsconsin
- Posts: 1050
- Joined: Tue Jul 10, 2012 1:47 pm
- Location: Sussex, Wisconsin (West of Milwaukee)
- Motorcycle: Current Rides -
2002 GL1800 - Pearl Orange
1983 Suzuki GS850GL - Blue & Black
Past rides -
2003 GL1800 - Illusion Blue
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1980 GL1100 - Custom Cobalt Blue
1985 GL1200 Aspencade Brown
1983 CX500 Custom Red
1982 CX500 Custom Blue
1978 CX500 Standard Black
1982 Suzuki GS650 Red - Contact:
Re: 1980 GL1100 Carb Rebuild in progress -
Starter has been removed from the bike...a good cleaning is in progress...
Hopefully it can be finsihed today and the bike started much more easily....
Further progress reports forthcoming
Hopefully it can be finsihed today and the bike started much more easily....
Further progress reports forthcoming
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Your results may vary. Universal disclaimers apply.
Munk's Maxim -- There is no such thing as a cheap motorcycle
Re: 1980 GL1100 Carb Rebuild in progress -
Didn't want to start a new thread, hence tacking on to this one.
Rebuilding a 1980 GL1100 carb. Not sure if the two parts, are for the 1980 GL1100?
Thanks
Kem
Rebuilding a 1980 GL1100 carb. Not sure if the two parts, are for the 1980 GL1100?
Thanks
Kem
- winguyjo
- Posts: 411
- Joined: Sat Aug 11, 2018 9:26 pm
- Location: b.c. Canada
- Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD
Re: 1980 GL1100 Carb Rebuild in progress -
the brass piece on the rights is the jet into which the slide needle moves up and down.
it sits inside the throat of the carb on the bottom. i can't recall whether it is installed from the underside of though the venturi.
the other piece is a mystery ... is it really "silver" in colour as it appears in the pic, or is it a brass jet ?
it sits inside the throat of the carb on the bottom. i can't recall whether it is installed from the underside of though the venturi.
the other piece is a mystery ... is it really "silver" in colour as it appears in the pic, or is it a brass jet ?
Re: 1980 GL1100 Carb Rebuild in progress -
Thanks. The other one is silver in color looks like some sort of a plug.
- winguyjo
- Posts: 411
- Joined: Sat Aug 11, 2018 9:26 pm
- Location: b.c. Canada
- Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD
Re: 1980 GL1100 Carb Rebuild in progress -
the only thing i can think of that comes close would be the float bowl drain screw, but those are brass. it's possible that a previous owner lost one and used that as a substitute, but if all 4 of your float bowl drain screws are accounted for, then i am officially out of ideas.