Pulling carbs but stuck


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filupsd
Posts: 84
Joined: Fri Sep 07, 2012 1:07 pm
Location: Rolla, Missouri
Motorcycle: 1984 GL 1200 Standard

Pulling carbs but stuck

Post by filupsd » Sun Jun 24, 2018 7:59 pm



I’m pulling the carbs on my 84 1200 and I’m stuck literally. Pulled the bolts and trying to pull out the left side. There is a hose that seems to go from the bottom of the carbs to the engine case under the left rear carb. I can’t get my hands in to get it loose.
I have looked at several videos and it is t in any of the videos.
Any help is appreciated



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filupsd
Posts: 84
Joined: Fri Sep 07, 2012 1:07 pm
Location: Rolla, Missouri
Motorcycle: 1984 GL 1200 Standard

Re: Pulling carbs but stuck

Post by filupsd » Mon Jun 25, 2018 7:01 am

Ok let me see about adding photos.
The first one is under the carbs from the back left side. The hose is going into the bottom of the carbs.
Photo two is the back left side of the case in front of the engine guard. The silver piece is normally under the tube that attaches the eft rear carb to the engine.
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julimike54
Posts: 452
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Location: Euless, Texas
Motorcycle: 1986 GL1200A original owner
2016 HD FLTRU

Re: Pulling carbs but stuck

Post by julimike54 » Mon Jun 25, 2018 7:34 am

Follow the shop manual and you should have success

https://classicgoldwings.com/forum/gall ... e_id=30970
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Riding anything is a good day!
Mike

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filupsd
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Location: Rolla, Missouri
Motorcycle: 1984 GL 1200 Standard

Re: Pulling carbs but stuck

Post by filupsd » Mon Jun 25, 2018 8:25 pm

Thank you for the link. The way I read this is that the tube should just lift off of the crankcase. Maybe there is an o ring holding it in. Am I correct?

walker70
Posts: 347
Joined: Fri Apr 08, 2016 2:53 am
Location: Headland,Alabama
Motorcycle: 1986 Honda Goldwing Aspencade

Re: Pulling carbs but stuck

Post by walker70 » Tue Jun 26, 2018 12:40 am

Having been through this myself,there are orings on all four tubes and you just have to use a thin flat blade screwdriver and gently pry them up,that is what I did.

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leakyroof58
Posts: 69
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Location: bemidji,mn
Motorcycle: '87 Aspencade
Sold: 1975 Kawi 900 Z1, Honda 350 Scrambler

Re: Pulling carbs but stuck

Post by leakyroof58 » Wed Jun 27, 2018 10:21 pm

When I first got my GW, I knew absolutely
nothing about them. While I've always been
a 'wrencher', and because my local pansy Honda
dealer won't work on bikes over 20 years old, it
was up to me to just dive in and learn....

The tubes just lift up out of the head, but old
o-rings get stuck. Pry up, and they will lift out.
(As far as I know, these PIAs were inspired by our
good-'ol EPA, who thought motorcycles should run
perfectly clean while we still have smoky diesel
buses stinking up our cities. Yeh, good thinking....)

While you got your carb rack out, get a re-build
kit for the 'slow-air cutoff valve' on the underside
of the rack. Helps with backfiring issue if you have
one. Get re-build kits for all carbs, and use OEM only,
unless you actually enjoyed pulling the rack out.
Many non-OEM kits don't have pre-shaped float bowl
gaskets, which makes replacing them a total nightmare.
(I never messed with the float levels or the pilot
screws - if it aint broke, I wont fix it. )

When you put the rack back in, make sure there
is a long vacuum hose going from a port on the
engine (left-front, as I recall) to the port on the
ECU. Mine was not connected, so no vacuum advance
at higher speeds. No wonder it runs so much better now.

With everything I replaced, I don't expect I'll ever
have to pull that carb rack again. If you're gonna
keep this bike, get a good shop manual for it.
Well worth the $25-30 it might cost.

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filupsd
Posts: 84
Joined: Fri Sep 07, 2012 1:07 pm
Location: Rolla, Missouri
Motorcycle: 1984 GL 1200 Standard

Re: Pulling carbs but stuck

Post by filupsd » Wed Jul 04, 2018 5:25 pm

Thanks I did get the rack out. I just had to have a mother set of eyes to see where it was hanging up. The vacu e looks intact to the left rear. Ordering slow air cutoff rebuild today

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filupsd
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Joined: Fri Sep 07, 2012 1:07 pm
Location: Rolla, Missouri
Motorcycle: 1984 GL 1200 Standard

Re: Pulling carbs but stuck

Post by filupsd » Fri Jul 06, 2018 10:28 pm

I have the carbs on the bench and have gone through the jets and screens to check and clean. (Rebuild was done 2 years ago) found two of the screens clogged from when a mouse chewed in my air filter. So I cleaned and blew everything out.
Planning to reinstall on Sunday but I ha e a vacuum line I’m not sure was hooked up when I pulled the rack. It is attached to the slow cutoff and another valve on the reed box(?) and goes to the right side of the engine.
Anyone have a vacuum diagram?

The second photo is the vacuum line coming from the triple connection above and I front of the air filter box. It comes down to the left. Does it attach to the left rear air tube from the carb?
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julimike54
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Location: Euless, Texas
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2016 HD FLTRU

Re: Pulling carbs but stuck

Post by julimike54 » Sat Jul 07, 2018 12:28 pm

Image
Riding anything is a good day!
Mike

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filupsd
Posts: 84
Joined: Fri Sep 07, 2012 1:07 pm
Location: Rolla, Missouri
Motorcycle: 1984 GL 1200 Standard

Re: Pulling carbs but stuck

Post by filupsd » Tue Jul 10, 2018 12:00 pm

Thank you for the diagram. I did look at it the other day and it just didn't register. I have slowly figured out what happened. The last guy to rebuild the carbs didn't put the tube with the vacuum connection nipple on the correct carb or side. That of course means the slow air cutoff hasn't been attached and the vacuum line from the three way connection above the airbox was hooked to the wrong spot.
I am anticipating that now that I have cleaned the screens, and hooked the vacuum line up correctly I will see a huge difference in performance and mileage.
Now I have to do the same thing to my 75 Olds before my wife gets upset that she hasn't been able to drive it this summer.

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julimike54
Posts: 452
Joined: Sun Feb 01, 2015 12:21 pm
Location: Euless, Texas
Motorcycle: 1986 GL1200A original owner
2016 HD FLTRU

Re: Pulling carbs but stuck

Post by julimike54 » Wed Jul 11, 2018 6:48 am

Hope to see a good results post following 8-)
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Riding anything is a good day!
Mike

froche
Posts: 139
Joined: Wed Mar 12, 2014 1:56 pm
Location: Vista, ca
Motorcycle: 1985 Goldwing Aspencade (GL1200A

Former bikes;
2000 R1100RT
2005 Suzuki Bandit
1979 Yamaha XS1100
1978 Yamaha XS1100 Special
1990 Yamaha XV250
1980 Yamaha XV750
1979 Honda CB750
1968 Triumph Bonneville T120
1973 Honda CB450
1968 Harley Davidson Sportster
1974 Honda CB750
1968 Honda CL72

Re: Pulling carbs but stuck

Post by froche » Wed Jul 11, 2018 11:29 am

I pulled the plugs and had plugs made to seal off the holes. Yes they have o rings and i used new ones (as you should) when resealing them. After trying it I realized that all I needed to do was to cut off the arm from the plug and seal with epoxy, then put o ring back on and reinstall. it makes no difference in gas mileage, power, or anything else.

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brianinpa
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Location: Lebanon, PA
Motorcycle: 1984 GL1200 Standard
1987 GL1200 Interstate

Re: Pulling carbs but stuck

Post by brianinpa » Mon Jul 23, 2018 8:40 pm

It's a lot easier to remove and reinstall without that secondary air system on the bottom of the carb. Plug the holes, re-route the vacuum lines and never look back.


Brian

If you aren't having fun doing it, find something else to do.

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