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Inletrubber nightmare


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Posted

Building up a GSXR750L with Mikuni 34mm flatslides. I've tried a number of combinations, and the one that gets closest to fitting is teapot 750-rubbers. However, this gives quite a big step between the head and the rubbers; are there different ones that would give the right fitment?

Original L rubbers are too big, 750K rubbers (36cv's) give the wrong spacing, strangely. 

Posted

They honestly don't and I was very suprised to find it out. The Teapot's that are on it now will stay and hopefully work. If all else fails, I can still revert back to CV's

Posted

It's not that I have problems fitting the carbs to the rubbers; I've got my tricks. It's about the fitment of the rubbers to the head. I'd like very much if the step wouldn't be there, but can;t seem to find a set which would give me this and fit the flatslides.

Posted
7 hours ago, MrS819 said:

Use a ratchet strap to pop them if helps. Its the only way I can get the carbs back on my GSXR1100 WT.

Nick the hairdryer of the misses, you'll never look back.

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Posted

You can see where it's not like it's supposed to be at the bottom. Same lip on the top, but in turn on the inside of the rubber and thus in the engines airflow. 

image.jpeg

Posted

All the short stroke 750 motors have the slightly raised entry to the inlet valves, so their rubbers would allow for this entry point (just my guess, haven't done this myself). Perhaps 1100f rubbers, or any of the smaller carb, long stroke 750 variants would be better ?  You're very right about not wanting 'walls' in the way for the intake charge, a good way to lose power and muck up the carburation. . .

Posted (edited)

Sounds right to me. 

Found some info on the interwebz, RS got bolts in the floater bowl to change the jets and are equipped with an adjustable accelerator pump. 

You must have some slabby inlet rubbers laying around? I tried 36mm CV on the inlet rubbers on my slabby few months ago, don't fit and 36mm inlet rubbers... also don't match the vm29 ers.

Edited by Quist

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