diaphrames on carbs - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 2 (permalink) Old 03-01-2009, 01:38 AM Thread Starter
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diaphrames on carbs

Dear Friends, I recently bought a 750 vulcan which stood for more than 2 years on filling the tank on start up the carbs flooded completely, I removed them and set about cleaning them, I found on one of the carbs the diaphrame (wilth a strong spring behind) it is perished. Can anybody tell me more about said diaphrame? I believe its there to prevent backfiring and can I remove it and what should I do to that particiular feul cercuit?
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post #2 of 2 (permalink) Old 03-01-2009, 02:01 AM
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It sounds like you are talking about the air cut-off valve diaphram...I would replace it. part number 43028-1053 at ron ayers for $38.44 (OEM) or aftermarket at old bike barn for $29.69. The description says, "Carburetor Air Cut Off Valve Kit. Includes Diaphragm, Spring and O-Ring. Helps prevent "after burn" caused by a lean fuel mixture from a malfunctioning air cut-off valve Kit includes new diaphragm, spring and "O" ring to completely rebuild one valve."

good luck and welcome to the forum!

☠ Black Candy ☠ '07 Mean Streak 1600
☠ Blue Crush ☠ '95 VN750-A11

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