Cold Exhaust


Information and questions on GL1100 Goldwings (1980-1983)
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Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Cold Exhaust

Postby Goldwing 80 » Fri Aug 12, 2011 6:27 am



On my 80 gl 1100 the muffler for 1-3 get hot,but the muffler for 2-4 is either cold or barley warm.I syncd the carbs and still have a shudder and clanking on take off.Once I get above 1600-1700 it seems to run fine.Any suggestions?



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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: Cold Exhaust

Postby virgilmobile » Fri Aug 12, 2011 8:29 am

Do a compression test on all 4 cylinders.Look for no more than 5 psi difference.

1/3 is the right side 2/4 the left so it's not the ignition system.Check the timing belt for that side,one tooth off will cause a poor firing cylinder.

A plugged idle jet on the 2 left carbs ,although not common,could be fuel starving 2/4 at a idle.

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RBGERSON
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Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: Cold Exhaust

Postby RBGERSON » Fri Aug 12, 2011 9:38 am

Pull plug wire while idling any change in rpm, keep close to engine and don't do it for long ..not good to break the circuit.?? if not they are not firing. Pull plugs if wet with gas..could be electrical if dry carb issue,
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Re: Cold Exhaust

Postby Goldwing 80 » Fri Aug 12, 2011 6:06 pm

Ok,so far I have done,is checked the timing belts.They are right on.Pulled plugs,nice and dry.Checked coils for spark,along with the plugs,and everything is fine.Only thing I haven't done is to do a cylinder compression check.No parts store has the adapter in their kits that will thread into the plug hole.Both exhaust ends have the same pressure,and sound.I am slowly start to lean on the valves not seating all the way.Maybe?

Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Re: Cold Exhaust

Postby Goldwing 80 » Fri Aug 12, 2011 8:02 pm

Finally found a compression kit that had the right size adapter for the plug hole. Did a dry compression test(ran out of daylight before I could drop some oil down into each hole).
With the throttle wide open I came up with:
cyl #1 : 170
cyl #2 : 170
cyl #3 : 170
cyl #4 : 160

will drop some oil into the holes tomorrow and see if there a difference,in readings.
Any ideas with what I have so far? Thanks Charlie.

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RBGERSON
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had every year from 75 to 83

Re: Cold Exhaust

Postby RBGERSON » Sat Aug 13, 2011 9:15 am

Idle jet clogged..and second jet restricted. Try squirting some gas into the air box while it's idling does the 2/4 pick up?? IE extra gas source gets them to fire..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Re: Cold Exhaust

Postby Goldwing 80 » Sat Aug 13, 2011 11:01 am

Just found out something very odd.While the bike is running,I can pull the boots off the plugs for #2 and #4 either one at a time or together,and there is no difference.But,...if I unscrew the wire from the coil(s) for 2 and 4,(only able to do one or the other)the bike will stall. But if I do the same for 1 or 3 the bike instantly will stall.I am at a loss for this one! Oh,...and both cdi's look like through the years have leaked the epoxy out,and have been sealed with silicone at one time,(black gooey tar running down the wires).

Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Re: Cold Exhaust

Postby Goldwing 80 » Sat Aug 13, 2011 11:19 am

RBGERSON wrote:Idle jet clogged..and second jet restricted. Try squirting some gas into the air box while it's idling does the 2/4 pick up?? IE extra gas source gets them to fire..


Just took a bottle with a clear hose and squirted some gas into the airbox(directly into the screen in front of 2-4)and yes the idle did kick up on both.Damn thing sounded really good for a few seconds.Also while I was there,I unscrewed the screws out of the vacume ports on 2-4 that are used to sync the carbs,and the thing just sucked in air and kept running.Didn't make a difference.,but if I do the same for 1-3 the bike will stall out.

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PAPete
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1982 GL1100-I

Re: Cold Exhaust

Postby PAPete » Sat Aug 13, 2011 1:10 pm

Do the coils fire 1-3 and 2-4, or is it 1-2 and 3-4. If it's the former, to me it would make sense to swap the coils and see if it transfers the problem to 1-3. At least you'd eliminate the coils from the list of possible culprits for sure.
Pete
82 GL1100-I
85 GL 1200-A

Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Re: Cold Exhaust

Postby Goldwing 80 » Sat Aug 13, 2011 8:34 pm

PAPete wrote:Do the coils fire 1-3 and 2-4, or is it 1-2 and 3-4. If it's the former, to me it would make sense to swap the coils and see if it transfers the problem to 1-3. At least you'd eliminate the coils from the list of possible culprits for sure.


Tried swapping coils with no difference.I believe I've narrowed it down to the #2-4 carbs being totally plugged up.

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

Re: Cold Exhaust

Postby virgilmobile » Sun Aug 14, 2011 8:09 am

Good diagnostics . Pop the carbs,clean them up.gooey stuff can be scraped off and refilled with JB Weld.

Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Re: Cold Exhaust

Postby Goldwing 80 » Sun Aug 14, 2011 8:57 am

virgilmobile wrote:Good diagnostics . Pop the carbs,clean them up.gooey stuff can be scraped off and refilled with JB Weld.


I've got the whole assembly off(intake and the 4 carbs)right now.Actually I don't even want to mess with them.Hate to go to all the trouble of tearing them down,cleaning,boiling them,etc.put them all back together,and have them not work.Rather put on 2 good carbs and be done with it.

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RBGERSON
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Joined: Tue Mar 09, 2010 7:57 am
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Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: Cold Exhaust

Postby RBGERSON » Sun Aug 14, 2011 9:17 am

just pull the jets on the 2 and 4 carbs clean them out and reinstall. BUt since you have the carbs out why not rebuild..Note Pistol Pete will make them like new for about $400..a good kit costs $200 or so so for $200 he'll do the work and he does excellent work..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

Goldwing 80
Posts: 39
Joined: Wed Jul 13, 2011 10:12 pm
Location: Geneva Ohio
Motorcycle: 1980 Honda Goldwing 1100

Re: Cold Exhaust

Postby Goldwing 80 » Sun Aug 14, 2011 9:31 am

RBGERSON wrote:just pull the jets on the 2 and 4 carbs clean them out and reinstall. BUt since you have the carbs out why not rebuild..Note Pistol Pete will make them like new for about $400..a good kit costs $200 or so so for $200 he'll do the work and he does excellent work..


Are you referring to the pc.that unscrews and has a bunch of cross holes down the shaft?If so,I did pull them and they were clean and open.Right now money is tight or I would have sent them out.




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