79 carb rebuild questions


Information and questions on GL1000 Goldwings (1975-1979)
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Ten4321
Posts: 10
Joined: Fri Jul 29, 2011 5:30 am
Location: Newcastle, CA
Motorcycle: 1979 GL1000

79 carb rebuild questions

Postby Ten4321 » Fri Jul 29, 2011 5:43 am



I'm rebuilding the carbs from a 79 GL1000 that I bought as a project. When I got the bike the carbs were already disassembled. I cannot figure out where the idle air jet (#130 in the rebuild kit) goes. From the disassembled parts that I have it does not look like the previous owner removed it. Also, in the service manual it says not to interchange vacuum pistons or vacuum chamber covers. The covers are marked but the pistons aren't. Therefore, I cannot tell which piston goes with which carb, will this be a problem? Also, I'm missing one of the springs that go with the vacuum chambers. Any idea how I could find another one? And finally how do you remove the float valve covers off the old float valves? I now if I put any muscle into it its going to break.

Thanks



TheArtist
Posts: 70
Joined: Fri Apr 08, 2011 1:13 pm
Location: dell rapids
Motorcycle: 1979 GL 1000

Re: 79 carb rebuild questions

Postby TheArtist » Fri Jul 29, 2011 8:58 am

I downloaded the manual and all the help tips from Radakk's, NGW and this site. Got enough info to tackle the job. My floats were frozen stiff, I carefully worked them up and down until they freed up alittle before I drove the pin out. The shield I carefully pried it up with small screw drivers while working it side to side. I used a torch tip cleaner to clean the float hinge, and a drill with fine sand paper for the pins. Some where it talks about a special cleaner, I bought some and let the parts set overnight in the solution, it did a great job. Good luck.

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 79 carb rebuild questions

Postby Old Fogey » Fri Jul 29, 2011 12:42 pm

The #130 jet goes into the brass 'elbow' on the side of each carb.
To remove the DELICATE fuel filter from the float valve, drop the assembly into some warm water for a few minute to soften the plastic a little. Be aware that these filters are nor available separately; they only come with the complete Honda replacement float valve.
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Ten4321
Posts: 10
Joined: Fri Jul 29, 2011 5:30 am
Location: Newcastle, CA
Motorcycle: 1979 GL1000

Re: 79 carb rebuild questions

Postby Ten4321 » Sat Jul 30, 2011 6:15 am

Thanks for the info. I got the little filters off by soaking them in warm water and then using a socket wrench to lightly grip the filter. I the turned them a few times and they came off. I found the missing spring so I now have all four. The brass elbows were actually removed from the carb so I would have never thought to look there. Does anyone know the specs on the floats? The factory manual says to set the floats at 21mm with no further information. Do the floats typically need to be re-calibrated?

Thanks again

Old Fogey
Posts: 724
Joined: Fri Oct 30, 2009 2:09 am
Location: Glasgow Scotland
Motorcycle: 1976 GL1000
1979 GL1000
Contact:

Re: 79 carb rebuild questions

Postby Old Fogey » Sat Jul 30, 2011 7:02 am

I suggest you read all this tip. Randakk is the carb guru!
http://www.randakks.com/TechTip33.htm
Then spend an interesting week or two reading all the rest of his tips! :D
More tips on my website too: http://www.wingovations.com/
Get yourself a workshop manual - you're going to need it!
Join other forums as well: http://www.ngwclub.com http://www.goldwingfacts.com/ http://classicwings.org/bbs/
You can never have too much information! !
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'Impossible' is just a level of difficulty! The only stupid question is the one you didn't ask first!

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Fred Camper
Posts: 1152
Joined: Sun Aug 16, 2009 9:15 pm
Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: 79 carb rebuild questions

Postby Fred Camper » Sat Jul 30, 2011 7:53 am

If your time is worth $3 per hour, then Randakk's carb video saves you money. They carbs work great and last long if ridden, but they are not simple to correctly rebuild. Pistol Pete is willing to help.




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