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Someone sent me a set of VM carbs he says are off a 850. I'm not sure how to tell if they're 850 or 1000. When I measure the intake side the outside dimension is 33.86 mm.
Are they indeed 850 carbs?
Are they indeed 850 carbs?
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Last edited by nastyjones; 06-24-2015, 08:46 PM.80 gs1100 16-v ported & polished, 1 mm oversize intake valves, 1150 carbs w/Dynojet stage 3, plus Bandit/gsxr upgrades -
Let's try it another way to get more responses. How do I tell the difference between 850 and 1000 carbs?80 gs1100 16-v ported & polished, 1 mm oversize intake valves, 1150 carbs w/Dynojet stage 3, plus Bandit/gsxr upgrades -
For the vm carbs, 750's, 850's, 1000 all used the same vm26 model. What was different was main jet size and needles.Comment
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No, the 750/850 carbs have the idle adjustment screw on top, at an angle
The 1000 carbs screw is vertical between #2 and #31978 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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And if its off a 79 they will be VMs..80s and above have CVs.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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Obviously, you need to post up a picture of what you do have1978 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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They're VM's80 gs1100 16-v ported & polished, 1 mm oversize intake valves, 1150 carbs w/Dynojet stage 3, plus Bandit/gsxr upgradesComment
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Figured that out at the beginning
Where's the idle adjustment screw?1978 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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Basscliff has a great vm tuning guide on his site-Mark
Boston, MA
Suck Squeeze Bang Blow..
sigpic
1980 GS850G with 79 carbs.....Comment
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The carburetors themselves are the same except for jetting. The mounting hardware is different, the choke, and the idle screw, but it will work on any of them. I swapped them around just because I like the little choke lever on the carb from the 750 better than the silly cable from the 1000. It all fit just fine.Comment
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Solved, thanks everyone. Rebuilt and running fine.80 gs1100 16-v ported & polished, 1 mm oversize intake valves, 1150 carbs w/Dynojet stage 3, plus Bandit/gsxr upgradesComment
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Ok, so it is "solved".
what did you find out?
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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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Yes, they're 850 carbs.80 gs1100 16-v ported & polished, 1 mm oversize intake valves, 1150 carbs w/Dynojet stage 3, plus Bandit/gsxr upgradesComment
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