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I need new carbs for my 78 gs1000 I was wondering if I can upgrade while I'm at it to maybe a diagram later type bigger size or it's best to go back to the same vm26s?
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If you want to go to the later BS carbs, you will need to change to a 1980 cylinder head, as well. The carbs are larger, which requires larger intake boots, which requires the head that was designed for them.
Why do you feel you need new carbs?
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mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.) -
Well the bike was in a electrical fire...and one carb choke tube was broken and the other got warped where the slide goes up and down and it gets stuckComment
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Yep, you are going to need some parts and/or new bodies. Contact member Chuck Hahn. He rebuilds carbs and might have the parts you need.
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mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
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I don't have a full rack or bodies to give up. Got keep a few around in case I need one some day. Sorry.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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You can run BS34 carbs on your head. I do, should say I did, I ran BST34SS off a GSXR1100 till I put my VM33's back on. You use KZ1000 manifolds, you just have to open up the attaching holes a few mm.
I should add that I ran pods with mine. Not sure if the factory air box will work.Last edited by Fjbj40; 04-10-2018, 07:56 PM.1978 Gs1085 compliments of Popy Yosh, Bandit 1200 wheels and front end, VM33 Smoothbores, Yosh exhaust, braced frame, ported polished head :cool:
1983 Gs1100ESD, rebuild finished! Body paintwork happening winter 2017:D
I would rather trust my bike to a technician that reads the service manual than some backyardigan that THINKS HE KNOWS how to fix things.Comment
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I have a full rack available1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
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Wat kind Big T? And how much?Comment
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Bjiones - VM carbs, just like yours. Cleaned, new O rings, ready to install and run
PM me regarding price1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
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