cv carbs off a 750 on to a 1000

[nicefighter80]

I just recently picked up a 82 gs750 with a 79 gs1000 motor in it, well when i picked up the bike the PO wanted to keep the flatslides he had on it and in turn gave me a set of 750 carbs to use on it, the bike ran on the flatslide, I'm just wondering if i just get a dynojet stage 3 kit (will be running pods due to not having the factory airbox) and rejet them the 750 carbs to run the 1000 motor. I've read all over bassCliffs site and couldn't find anything about re-jetting in the manor, thanks in advance I'll try to answer any questions you guys have

[7981GS]

Pictures of the carbs that you now have, the intake manifolds and the intake ports on the 1000 please.

Daniel

[Big T]

You won't find a DJ kit for VM carbs, because VMs don't need them

Just rejet and tune from there

[nicefighter80]

I can get pics of carbs because they are sitting next to me but the bike is at my parents garage 40 mins away, is there something particular you are looking for that I could answer instead of driving? If you need pictures I can drive out there

[nicefighter80]

I have the cv carbs off of a 750, not vm's

[hjfisk]

I ran a set of 32mm cv's on my 1980 GS1000G for a couple of seasons, they worked ok but it didn't have the acceleration that it does with the 34's that belong on it. I
f I remember correctly I had 40 pilot jets and 135 mains with a stock airbox and exhaust, bonus was around 50 miles per gallon , all though I only lostabout 5 miles a gallon going to the 34,s plus better acceleration.

[Big T]

I have the cv carbs off of a 750, not vm's

Well, if you have a 79 1000 "small port" head (which is why he wanted a picture). the CV carbs don't exactly fit

Some members have made them fit by using the 80 1000 intake rubbers, but there is a step down at the port

[nicefighter80]

Ok I will run out there here soon and take some pictures, should I measure anything to be able to tell for sure wether it's a small port or not, basically what should I be looking for to determine if it is a small port head

[7981GS]

If the intake manifold is off, the small port head is 27.4mm and the large port head is at 32.0mm roughly on both measurements off the top of my head.
I can go measure a couple to be certain but those should be close.

Daniel

[nicefighter80]

I measured the port in the head, 1 1/8 in or 28ish mm measurements were taken with a junky ruler lol I'll post pics of it when I get home

[nicefighter80]

heres a shot of the engine, ill upload a shot of the intake boots to make sure it has the step down you guys were talking about

[nicefighter80]

heres the boot

[nicefighter80]

heres a shot of the carbs, i have a pic for the other side if need be

[850 Combat]

So do the carbs fit in the boots?

[nicefighter80]

they do not, well maybe but it will be a VERY tight fit almost to where ill have to take that inner lip down to get them to fit, not sure what to do, i guess my best bet is to find the right intake boots that will fit the carbs i have