Question about 2002 kawasaki VN 400 Vulcan Classic

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Kawasaki Vulcan VN400 carb diaphragm broken

Looking for new carb, Kei Hin CVK G141 AJFU,
have problem with broken diaphragm and choke cable fitting,
any help ???

Zack. (Cape Town)

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  • zayan92 Mar 02, 2009

    I have the same problem on my vulcan 800 classic..( the carb diaphragm has broken..most parts are missing)...from what i read online, the bikes were recalled because of this problem.

    but unfortunately i didnt know about this.



    If anyone knows where i can purchase one of these diaphragms online, please let me kno asap.



    Thankyou in advance

×

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I bought a 750 vulcan and the previous owner played with the carbureator settings. I replaced the dead battery and can get the bike started but only with the choke on fully. It is the only way the bike will remain running. Any tips on how to set the carb would be appreciated.

Posted on May 29, 2011

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You can used the diaphram of a CB750 just grind the the pointed tip in the middle...

Posted on Apr 09, 2009

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If you are really stapped on cash napa auto parts has some heavy duty rubber spray. Just spray a thin layer over both sides of the diaphragm to repair any holes/tears and let dry overnight. My diaphragm was going to cost over $110 for one. It will still have full function and be even stronger than stock!

Posted on Feb 12, 2009

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You can but the slide with the diaphram separately as a single unit. They used to cost about $50.00 US, the choke cable fitting will also be available separately as well. To outright buy the carburetor you will not only making a tremendous amount of work for yourself but you will be spending I would guess no less than $200.00 US. They actually have diaphram kits you can buy from after market suppliers for even less money than the dealer and they are OEM Keihin parts.

Posted on Dec 08, 2008

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Posted on Jan 02, 2017

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