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1978 Honda CB550K Carburetor Kits, Gaskets & Screws

The 1978 Honda CB550K carburetor repair selection offers a one-carb kit, individual gasket choices, a float needle and a separate screw package. Compare the fitted carburetors with the kit’s named calibration parts and supplied gaskets before adding individual pieces that may overlap with that purchase.

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Currently viewing Carb Rebuild & Jetting

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Honda CB750 CB650 CB550 float bowl gasket

Honda CB750 / CB650 / CB550 Float Bowl Gasket

$9.95 USD
20-8030
Replace your late-'70s CB float bowl gasket with this Float Bowl Gasket (O-ring).Key Features• Float bowl gasket (O-ring)Fitment / Compatibility• Honda CB750K (1977‑78)• CB750F...
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Honda CB750 CB650 CB550 CB400 CB125 float needle 16011-382-004

Honda CB Float Needle ~ Replaces 16011-382-004

$8.95 USD
48-5010
Replace your float needle (only) with this Float Needle, replacing OEM #16011-382-004.Key Features• Float needle (only)• Replaces OEM #16011-382-004• Honda part name: Valve Set,...
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Honda CB550K carburetor screw kit

1977-78 Honda CB550K Carburetor Screw Kit

$15.94 USD
49-0004
Refresh your 1977-78 CB550K carb screws with this Carburetor Screw Kit. Get a new set of screws to clean up the look of your...
Honda CB550K carb rebuild kit

1977-78 Honda CB550K Carb Rebuild Kit

$24.95 USD
48-1999
Rebuild your 1977-78 CB550K carb with this Carb Rebuild Kit. Contains float bowl gasket, carb top gasket, float needle, main jet (#90), jet holder,...
Honda CB750A CB650 CB550 carb top gasket 16014-393-004

1976-80 Honda CB750A / CB650 / CB550 Carb Top Gasket ~ Replaces 16014-393-004

$9.50 USD
73-0954
Replace your carb top gasket with this Carburetor Top Gasket, replacing OEM #16014-393-004.Key Features• Carburetor top gasket• Replaces OEM #16014-393-004• Honda part name: Top...
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1978 Honda CB550K · Carb Rebuild & Jetting Buying guide

Read the one-carb contents before adding repair pieces

The kit identifies a main jet and jet needle alongside gaskets and other internals. The separate screw package has an itemized hardware list; neither title should replace checking exactly which components the planned work needs.

Parts to consider

1977-78 Honda CB550K Carb Rebuild Kit Repair kit for one carburetorIncludes a #90 main jet, #D376 jet needle, gaskets and the other named internals.View part 1976-80 Honda CB750A / CB650 / CB550 Carb Top Gasket ~ Replaces 16014-393-004 Separate carburetor top gasketTop-position gasket referencing 16014-393-004 for the stated CB550K 1977–78 application.View part 1977-78 Honda CB550K Carburetor Screw Kit Carburetor screw and drain-screw packageFour drain screws with O-rings, eight 4 × 12 screws and twelve 4 × 16 screws with lock washers.View part

Related parts: Separate bowl gasket/O-ring · Float needle only

Check what the calibration identifiers actually establish

The kit contains a #90 main jet and #D376 jet needle. Those are the supplied identifiers, not a recommendation for every changed intake or exhaust arrangement. Compare the fitted carburetor and intended setup with that information before choosing the kit or assuming it supplies the calibration required for a modified motorcycle.

Separate gasket overlap from the hardware package

The rebuild kit names bowl and top gaskets, while the screw kit names four drain screws with O-rings and two groups of screws with lock washers. Compare both lists with the planned work before adding individual gaskets or drain pieces that duplicate the contents of the chosen package.

Common ordering questions

Does the kit supply a replacement float?

Its itemized contents name a float needle but not a float. The separately listed float product has its own contents. Compare the actual components required before assuming the one-carb rebuild kit supplies every part associated with the float system.

What does the separate float-needle product include?

That product is expressly described as a float needle only, with reference 16011-382-004. Identify the fitted carburetor and compare the needed component before buying; a needle-seat package is not named in its supplied contents.

Are a pilot jet and every metering piece listed in the kit?

The contents name a main jet, jet holder and jet needle with other specific internals; a pilot jet is not named. Compare any additional metering-component requirements with the itemized list and clarify missing pieces before placing the order.

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