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cv carbs off a 750 on to a 1000

  • Thread starter Thread starter nicefighter80
  • Start date Start date
I rode two of my GS1000E's last week a day apart.
The '79 has stock 28mm carbs and airbox.
The '78 has the Kawasaki 32 CV's and pods.
Both have the same stock exhaust on them.

The '78 had much more power even though it has a 2.66:1 final drive ratio
and the '79 has a stock 2.80:1 final drive ratio.

Use the CV carbs if you can make them work. ;)


Daniel
 
I guess I will have to shave off some of that inner lip on the intake boot it order to squeeze them over the carbs
 
anybody know if the vm 750 carbs are the same as the vm 1000 carbs? i assume they are both 26mm but with differnt jetting can anyone confirm that assumption?
 
IIRC, the 750's used 26mm ones and the 1000's used the 28mm ones.
Yes they both LOOK identical and are interchangeable. In sets.

Daniel
 
A lot of gs1000 78 79 models have VM26 carbs same as gs750. I know this as mine had busted threads on a mixture screw, and i used a 750 carb body. gs1000S 79 model had VM28 carbs, depending on which market USA or EUROPE etc.
 
so its safe to use the vm26's for the sake of them being easier and cheaper to find, i saw a couple sets of vm26's on ebay in the 110-200 dollar range, thinking about picking up a set because I've tried opening up one of the intake boots and even after removing that lip It still is a super tight fit and i feel like with all this removing of material its going to leak somewhere and id rather just buy vm26's and do it right, you guys agree with me on getting vm26's?
 
Good news I went to the PO house today to pick up more parts and he gave me a intake boot that has the same size bolt holes but has a bigger mount and it fits on the carbs perfect so now i need to track down a set of these new bigger boots here is a pic to show the difference in the ones that are on it compared to the new one he gave me. well after some searching i found these http://www.motorcycle-superstore.co...80003&zmam=88421133&zmas=1&zmac=45&zmap=41526
 
Last edited:
Excellent!!!!
They even come with the $3.00 clamps! Heck of a deal! ;)
I never knew that MCSS sold them. :o

Daniel
 
yea I already ordered just 1 to make sure they will fit hopefully they do!
 
Well I got in the new boot along with a set of o rings for it, well the boot has the same spacing as the the old boot and its flange mounts on the carbs perfect but the new 32mm oem o rings are to small for the new adapter flange, perhaps i can find some 33m or 34mm o rings
 
ok these new boots are a little big, i have a 79 engine and im running into probelms with finding the right boots to fit the 79 head (flange on head is 42mm OD, 28mmID) while my new boot is (54mm OD 37mm ID) so in order for this to work i have 5mm to work with well divded that by 2 for both sides, so i have 2.5mm that i have to find a o ring for im thinking 40mm o-ring thats 1.5mm thick. unless someone can measure the boots on a 80-81 gs1000 (part number 13110-49100) so i can see if those will work
 
Well just to keep you updated, after searching around for 2 hours on boots, I found a different model that has 57.2mm stud spacing (stock is 59/60mm) with a carb spigot diameter of 37mm (stock is 38mm) and the head side of the flange is 30mm (stock head is 28mm so these are much closer compared to the other ones i ordered with have a 38mm, so as you can tell the new one i bought ate the port on the head) if my math is right this new one i ordered yesterday (pt# vm30-288) should work! knock on wood
 
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