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  1. #1
    cigarlust's Avatar
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    Need help identifying Mikuni carb

    Here's the story, we bought a used 89 650sx, it's got a west coast intake & exhaust, pjs exhaust, a/f water box and all the pump stuff. I have no idea what this carb is and what size rebuild kit I need, I know I need to replace all the grey lines with new ones... where can I get a gasket for the carb to west coast intake manifold?

    We ran it all last summer without issues, I'm sure I'm lucky I didn't sieze it out.

    The other weird thing is the way the fuel system was set up, they use a little dinky fuel pump for the stock 28mm carb but I know this carb is way big enough to pull it's own weight, but who ever rigged it up was still using the fuel pump?
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  2. #2
    DPeteLand PeteSkeet's Avatar
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    looks like a 44 sbn

  3. #3
    cigarlust's Avatar
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    Thanks, after searching the web that's what I determined just wanted to make sure someone else confirmed, it looks like the carb rebuild kit does all SBN's from 38 to the 46mm Mikuni...

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