Another guy with carb parts question


Information and questions on GL1100 Goldwings (1980-1983)
  • Sponsored Links
Post Reply
User avatar
OldguyGlen
Posts: 31
Joined: Sat Nov 24, 2018 10:55 am
Location: Mound,MN
Motorcycle: 1980 GL1100 Interstate
1966 Honda 90

Another guy with carb parts question

Post by OldguyGlen » Fri Mar 01, 2019 8:31 pm



Still working on the rebuild (see "back from the dead gl1100" thread)
Got the carbs re-assembled. Trying to bench sync them using feeler gauge.
Problem: The little shaft adjusters have stripped threads. Someone has been into these before...apparently used brute force techniques.
Where can I source these???
I have thought about fabricating some from small machine screws.... grind a screwdriver slot into the ends. Has anyone tried that?

carb shaft adjuster (sync) screws... stripped threads
carb shaft adjuster (sync) screws... stripped threads




User avatar
jaimenv
Posts: 57
Joined: Thu Dec 27, 2018 6:48 pm
Location: carolina puerto rico
Motorcycle: 1981 gl1100 Standard (Naked)
1986 gl1200 Interstate (Barney)

Re: Another guy with carb parts question

Post by jaimenv » Fri Mar 01, 2019 10:23 pm

OldguyGlen wrote:
Fri Mar 01, 2019 8:31 pm
Still working on the rebuild (see "back from the dead gl1100" thread)
Got the carbs re-assembled. Trying to bench sync them using feeler gauge.
Problem: The little shaft adjusters have stripped threads. Someone has been into these before...apparently used brute force techniques.
Where can I source these???
I have thought about fabricating some from small machine screws.... grind a screwdriver slot into the ends. Has anyone tried that?
wp_ss_20190301_0001.png
No I have not done this exact bolt/screw replacement, yet I have cut flat tip screw driver slots on messed up Philips screw heads at the rear brake cylinder fluid hose fitting. Just to get by while I sort other things.
Figure the idea is sound and it will work, also you will be able to move along while you try to source the original parts.
Jaime

User avatar
chief771
Posts: 50
Joined: Fri Feb 08, 2013 2:55 am
Location: Austin, mn
Motorcycle: 1980 Goldwing GL1100

Re: Another guy with carb parts question

Post by chief771 » Mon Mar 04, 2019 2:35 pm

I have a junk set of carbs from a 1981 goldwing. If you would like I can see if I have those parts. I will check and get back to you.
Kevin
Where ever you go, That's where you are.
Chief771
Kevin

User avatar
chief771
Posts: 50
Joined: Fri Feb 08, 2013 2:55 am
Location: Austin, mn
Motorcycle: 1980 Goldwing GL1100

Re: Another guy with carb parts question

Post by chief771 » Mon Mar 04, 2019 2:54 pm

I have these two remaining. Is this what you need? Pics attached.
Where ever you go, That's where you are.
Chief771
Kevin

User avatar
chief771
Posts: 50
Joined: Fri Feb 08, 2013 2:55 am
Location: Austin, mn
Motorcycle: 1980 Goldwing GL1100

Re: Another guy with carb parts question

Post by chief771 » Mon Mar 04, 2019 3:05 pm

I have these two left if you still need them. Let me know and we can work something out.
Kevin
Attachments


Where ever you go, That's where you are.
Chief771
Kevin

User avatar
chief771
Posts: 50
Joined: Fri Feb 08, 2013 2:55 am
Location: Austin, mn
Motorcycle: 1980 Goldwing GL1100

Re: Another guy with carb parts question

Post by chief771 » Wed Mar 06, 2019 8:25 am

Just wondering if you got my last email. I figure the parts have no value to me so just send me a shipping envelope and I will send out the parts. No need for the 5.00. Have a great day!
Kevin
Where ever you go, That's where you are.
Chief771
Kevin

User avatar
chief771
Posts: 50
Joined: Fri Feb 08, 2013 2:55 am
Location: Austin, mn
Motorcycle: 1980 Goldwing GL1100

Re: Another guy with carb parts question

Post by chief771 » Sat Mar 09, 2019 8:34 am

Hi Gary
I got the envelope and will be putting the parts in the mail today.
Enjoy your weekend!
Kevin
Where ever you go, That's where you are.
Chief771
Kevin

User avatar
newday777
Posts: 1048
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer and fall Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: Another guy with carb parts question

Post by newday777 » Mon Mar 11, 2019 11:08 am

The problem is the metal tab threads those adjusters screw into get stripped out. Not the adjuster itself.

User avatar
OldguyGlen
Posts: 31
Joined: Sat Nov 24, 2018 10:55 am
Location: Mound,MN
Motorcycle: 1980 GL1100 Interstate
1966 Honda 90

Re: Another guy with carb parts question

Post by OldguyGlen » Mon Mar 11, 2019 2:47 pm

Good question about the threads in the metal tab... I thought about that too. I believe they are not in the best shape, but seemed better, visually, than the screws. I will carefully try the screws that are on the way from Kevin (chief771... thank you big-time for helping out) and try to avoid damaging those threads in the old holes in the tabs. I don't have a 4mm-0.5 tap but might try to get one to chase the threads first. I couldn't find any 4mm- 0.5 screws locally. Too bad because I was going to use some sacrificial screws to chase the original threads in the tabs. (cheap alternative to using a real tap).
More drastic measures would be to "peen" the hole in the tab to close up the hole slightly, (or JB Weld) and then run a tap. Or drill them out to 4mm clearance, and add a second lock nut, as a jam nut, to the top of the adjuster screws. (if they are long enough). Or add a drop of blue locktite to the single lock nut. Hopefully, the main damage was to the original screws (they looked bad), and these replacements will work OK.

User avatar
OldguyGlen
Posts: 31
Joined: Sat Nov 24, 2018 10:55 am
Location: Mound,MN
Motorcycle: 1980 GL1100 Interstate
1966 Honda 90

Re: Another guy with carb parts question

Post by OldguyGlen » Wed Mar 13, 2019 5:07 pm

Got the spare parts from Kevin (chief771). He's the hero of the week, thanks a bunch.
They work well. The threads in the metal tabs were good enough to hold these replacement screws.
Thanks to the others for their suggestions and comments... this is a great forum.

But the guy who coined the phrase "if it's not one thing, it'll be another..." must have been following me around that day.
Put the carbs together, bench sync'd them (with Kevin's parts), and proceeded to further bench test before putting the rack back in the bike. Rigged a temp fuel line, and raised the top up 4 ft to simulate fuel pump pressure. #2 overflowed. It had one of the 2 new needle valves I needed to replace. Luckily I tapped on the case, and grabbed the whole rack and lifted and rotated it a couple times, and the overflow stopped. So I proceeded to test the accel pump... nothing !!! Pulled the cover off the pump... dry inside. Appears the check valve in the middle of the cover was plugged. Thought I had cleared that weeks ago when I had #3 apart. But there are so many passages to check, maybe I missed that one. Took a bit of pressure flushing with cleaner, but it seemed to clear now. Still have to put it together again and re-test it in the assembly... make sure it feeds the other three carbs.... What an adventure.

User avatar
chief771
Posts: 50
Joined: Fri Feb 08, 2013 2:55 am
Location: Austin, mn
Motorcycle: 1980 Goldwing GL1100

Re: Another guy with carb parts question

Post by chief771 » Wed Mar 13, 2019 6:48 pm

Glad you got the parts and they work. Always an adventure working on these old wings but so worth it,! So glad I could help! The best of luck to you!


Where ever you go, That's where you are.
Chief771
Kevin

Post Reply