having issues with my single carb


Information and questions on GL1100 Goldwings (1980-1983)
Post Reply
User avatar
made2care
Posts: 476
Joined: Sun May 25, 2014 7:36 am
Location: Woodward, Oklahoma
Motorcycle: Yamaha 750- college days- sold
Yamaha virago- sold
Honda VTX 1300- sold
Honda shadow Aero 1100- sold
1987 Honda Goldwing interstate "Sleeping Beauty"- sold
02 kawasaki vulcan 1500 drifter - sold
1997 Honda goldwing SE 1500 - AKA "Black Beard" (sold)
1981 GL1100 - "The Wanderer II"- current
2006 kawasaki vulcan 1600- current

having issues with my single carb

Post by made2care »



Used a VW 34-3 single carb. Bike runs but is fouling the plugs very quickly. I set the carb per DKL ( dude on steve saunders site) and she idles well but fouls plugs like crazy !!
Once the plugs are fouled, when i open up the throttle at highway speed , she stammers. no backfiring at all.
Is she running rich or maybe a possible vacuum leak but then it would run lean.
The plugs are sooty(dry) black.

If anyone has converted to the 34-3, your help would be greatly appreciated.


User avatar
made2care
Posts: 476
Joined: Sun May 25, 2014 7:36 am
Location: Woodward, Oklahoma
Motorcycle: Yamaha 750- college days- sold
Yamaha virago- sold
Honda VTX 1300- sold
Honda shadow Aero 1100- sold
1987 Honda Goldwing interstate "Sleeping Beauty"- sold
02 kawasaki vulcan 1500 drifter - sold
1997 Honda goldwing SE 1500 - AKA "Black Beard" (sold)
1981 GL1100 - "The Wanderer II"- current
2006 kawasaki vulcan 1600- current

Re: having issues with my single carb

Post by made2care »

Update, the main jet size interestingly enough was too small. adjusted , and she runs amazing.
User avatar
Joecop
Posts: 93
Joined: Sat Mar 17, 2012 5:28 pm
Location: Michigan
Motorcycle: 1980 GL1100I
1972 Honda Chopper
1989 Yamaha FZR600
1981 Honda ATC 200cc

Re: having issues with my single carb

Post by Joecop »

Any chance you could share some pics of your intake?
Jag
Posts: 49
Joined: Thu Feb 09, 2017 1:22 am
Location: Pearlington, MS
Motorcycle: 1983 gl1100A Aspencade, 1982 GL1100 Interstate

Re: having issues with my single carb

Post by Jag »

Thanks for the update I would also love to see some pics of this setup. Also how did you figure it out???
User avatar
made2care
Posts: 476
Joined: Sun May 25, 2014 7:36 am
Location: Woodward, Oklahoma
Motorcycle: Yamaha 750- college days- sold
Yamaha virago- sold
Honda VTX 1300- sold
Honda shadow Aero 1100- sold
1987 Honda Goldwing interstate "Sleeping Beauty"- sold
02 kawasaki vulcan 1500 drifter - sold
1997 Honda goldwing SE 1500 - AKA "Black Beard" (sold)
1981 GL1100 - "The Wanderer II"- current
2006 kawasaki vulcan 1600- current

Re: having issues with my single carb

Post by made2care »

Yes, I will get pics sometime this week.i just ran some test runs , decreasing the main jet size each time. That was causing it to starve even more when I opened up the throttle. I went back to the size it came with and then went 1/2 size bigger, runs perfect now.
Dirtyoldman(DK)
Posts: 6
Joined: Sun Apr 25, 2021 4:29 am
Location: Denmark
Motorcycle: 1976 GL 1000 k1

Re: having issues with my single carb

Post by Dirtyoldman(DK) »

Hey that size main jet didn't you use
User avatar
dingdong
Posts: 4071
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500A
2004 NRX1800 Rune SOLD

Re: having issues with my single carb

Post by dingdong »

Dirtyoldman(DK) wrote: Mon May 03, 2021 8:37 am Hey that size main jet didn't you use
Say what???
User avatar
Rambozo
Posts: 793
Joined: Sun Apr 01, 2018 8:36 pm
Location: Disneyland
Motorcycle: 1992 GL1500 Aspencade
Ducati Monster

Re: having issues with my single carb

Post by Rambozo »

dingdong wrote: Tue May 04, 2021 3:51 pm
Dirtyoldman(DK) wrote: Mon May 03, 2021 8:37 am Hey that size main jet didn't you use
Say what???
With typos and autocorrect my wild ass guess is:

"Hey, what size main jet did you use?"
LAB3
Posts: 46
Joined: Mon May 25, 2020 10:49 am
Location: Branson, Mo
Motorcycle: Naked 1983 GL1100I project bike, now semi-dressed

Re: having issues with my single carb

Post by LAB3 »

Rambozo wrote: Tue May 04, 2021 4:36 pm
dingdong wrote: Tue May 04, 2021 3:51 pm
Dirtyoldman(DK) wrote: Mon May 03, 2021 8:37 am Hey that size main jet didn't you use
Say what???
With typos and autocorrect my wild ass guess is:

"Hey, what size main jet did you use?"
I'm running the same set up, it would be nice to know so I can compare notes.
User avatar
AZgl1800
Posts: 2687
Joined: Thu Oct 30, 2008 2:46 pm
Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800
2009 Piaggio MP3 250cc

Re: having issues with my single carb

Post by AZgl1800 »

I suspicion that 90% of our forum followers now only use a cellphone, I did NOT say a "smart phone" as those damn things keep screwing up my text AFTER I have approved the text, then click submit, and the "auto-correct" modifies my text... :x

I refuse to use a cell phone to surf the forums, I only use my laptop so that I can control exactly what is posted.

if it is wrong, it is my dyslectic fingers.
~John

'02 GL1800
2009 Piaggio MP3 250cc
Dirtyoldman(DK)
Posts: 6
Joined: Sun Apr 25, 2021 4:29 am
Location: Denmark
Motorcycle: 1976 GL 1000 k1

Re: having issues with my single carb

Post by Dirtyoldman(DK) »

Well being dyslexia and from denmark english isn't my first language
Dirtyoldman(DK)
Posts: 6
Joined: Sun Apr 25, 2021 4:29 am
Location: Denmark
Motorcycle: 1976 GL 1000 k1

Re: having issues with my single carb

Post by Dirtyoldman(DK) »

Right now mine is running a 145 main jet but will be trying some bigger


Post Reply