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  1. #1
    sltx1050's Avatar
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    kawasaki js 550 carb question

    i have a 89 js 440 the i turned into a 550 with a mariner exhuast, tdr water box, racing head, and 550 44mm carb with a racing intake now my question is i went to hook up the carb and theres no return fuel line nipple on the carb. its has the fuel line in on the fuel pump and the pulse line rite below it and theres a plug covering the rev limiter nipple! is that a mod for this carb to delete the return fuel line and close off the rev limiter? heres a couple pictures the first pictures show the carb with a tube on the shot where i think the return used to be and the second one shows the same spot with out the tube on there!!
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  2. #2
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    ok so i figured out that the tube going from the fuel pump to the brass fitting is a power jet now my question is why would anyone block off the return fuel line??
    i cleared all the jb weld so i should be able to use it now but im still confused on why they would block it off!! another thing i noticed is there a section inside the carb that has been jb welded ive read that group k modifys a internal curcuit now heres a picture of mine is this what group k is talking about???

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  3. #3
    sltx1050's Avatar
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    bump

  4. #4
    sltx1050's Avatar
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    anyone???

  5. #5

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    if i was you i would get rid of that BN 44 carb and buy a Sbn carb. i don't think you will be able to get it tuned with your pipe.

    I dunno why they would jb weld all that stuff.

  6. #6
    sltx1050's Avatar
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    ya thats what i was thinking after all the reading ive been doing on this carb, now my question is what model ski did the sbn come on so i can look for a cheap used one??
    or where can you buy them new?

  7. #7

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    i dunno what model they came on. but you can find them on ebay or in the for sale forum

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