Rubber Intake Insulator Set - 16211-404-000 - Honda CB550K - 1977 - 1978

$26.95
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Set of 4 replica rubber intake insulators, manifolds or carburetor holders, call em what you like. For use with the stock carburetors on the Honda CB550K. All 4 boots are the same. If you've discovered cracks on your stock intake boots, it's time to replace them because they're most likely leaking air which leans out your air/fuel mixture. A quick way to check is to spray something non flammable on the boots with the engine running, if you hear a change in RPM, they are leaking for sure!

Inner Diameter: Side A - 32.5mm - Side B - 34.5mm
Outer Diameter: 48mm
Overall Length: 29.8mm

These are to be used with carburetor model X46A or PD46C.

Honda Part Number: 16211-404-000

Fits Honda:

CB550K - 1977-1978

may fit other models....

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  • 5
    Works great

    Posted by John on 9th Aug 2018

    don't listen to Unknown If you install and clamp them correctly they wont leak air... Make sure everything in on tight and pushed on as far on as it will go and clamp them as far towards the carb body or intakes as possible and clamp them tight. there are methods to soften the rubber but that may reduce the life of them and is unnecessary.

  • 3
    not the best

    Posted by Unknown on 9th Oct 2017

    These insulators were pretty stiff, and my bike still leaks air past them because of it. I would just spend the extra money on genuine Honda boots.