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1978 Honda CB550K Fuel-System Service & Intake Parts

A 1978 Honda CB550K fuel-system order can involve carburetor internals, holders, a filler cap or custom intake parts. Start by identifying which assembly needs attention. Check the supplied contents and fitted components before combining a one-carb kit with separate seals, mounting rubbers or replacement controls.

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Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB front fuel tank holder rubber 17611-283-010

Honda CB Front Fuel Tank Holder Rubber ~ Replaces 17611-283-010

$7.87 USD
02-6534
Secure the front of your fuel tank with this Front Fuel Tank Holder Rubber, a direct replacement for OEM #17611-283-010. Fits a broad range...
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Honda CB throttle sleeve 53141-300-010

Honda CB Throttle Sleeve ~ Replaces 53141-300-010

$9.95 USD
02-2462
Refresh the throttle feel on your Honda with this Nylon Throttle Sleeve, a replacement for OEM Ref. #53141-300-010 with exceptionally broad fitment across the...
Honda CB750 CB550 CB450 CB400 CB350 gas cap rubber seal 17631-329-003

Honda CB Gas Cap Rubber Seal ~ Replaces 17631-329-003

$7.95 USD
20-0097
Replace the broad-fitment gas cap rubber seal on many classic Hondas with this Gas Cap Rubber Seal, replacing OEM #17631-329-003. Exceptionally wide fitment covering...
Honda CB750A CB750F CB750K throttle cable push 17920-393-000

1976-78 Honda CB750 / CB550 Throttle Cable ~ Push ~ Replaces 17920-393-000

$26.23 USD
51-2591
Replace your CB throttle push cable with this Throttle Cable "Push Type", replacing OEM #17920-393-000 / #17920-393-010. Made in Japan.Key Features• Throttle cable, push...
Honda CB750 CB550 choke cable 17950-393-020

1976-78 Honda CB750 / CB550 Choke Cable ~ Replaces 17950-393-020

$29.95 USD
51-2602
Replace your CB choke cable with this Choke Cable, replacing OEM #17950-393-020 / #17950-404-670. Made in Japan.Key Features• Choke cable• Replaces OEM #17950-393-020 /...
Honda CB1100 CB1000 CB900 CB750 float bowl drain screw o-rings pk 4

Honda CB Float Bowl Drain Screw O-Rings Pk/4

$5.80 USD
48-0792
Replace your float bowl drain screw O-rings with this Float Bowl Drain Screw O-Rings 4-Pack.Key Features• Float bowl drain screw O-rings• 4 per packFitment...
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...
Honda CB750 CB550 CB400 filler cap 17620-399-010

Honda CB750 / CB550 / CB400 Filler Cap ~ Replaces 17620-399-010

$69.95 USD
73-0079
Replace your gas tank cap with this OEM Style Gas / Fuel Tank Cap with rubber gasket already installed, replacing OEM #17620-399-010.Note: does not...
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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,...
Honda CB1100 CB1000 CB900 CB750 CB550 air screw needle o-ring

Honda CB Air Screw Needle O-Ring

$1.95 USD
48-5043
Replace your air screw needle O-ring with this Air Screw Needle O-Ring, 2.8mm x 1.2mm.Note: sold each, order the quantity you require.Key Features• Air...
Honda CB750 CB550 CB500 CB400 CB350 round pod air filter

Honda CB Round Pod Air Filter

$22.95 USD
15-0030
Match the 15-0020 fitment with a chrome end-cap pod using this 39mm Round Pod Air Filter with chrome end cap. Circular style, supplied dry,...
Honda CB1100 CB1000 CB900 CB750 float bowl drain screw -a

Honda CB Stock Type Float Bowl Drain Screw ~-A

$6.50 USD
48-5042
Small part, but an important one. This float bowl drain screw with included O-ring allows you to properly drain the carburetor bowl without leaks,...
New
Honda CB550 CB500 CB360 rear fuel tank holder rubber 17613-286-000

Honda CB Rear Fuel Tank Holder Rubber ~ Replaces 17613-286-000

$9.95 USD
12-0133
Restore proper rear fuel tank mounting on your mid-'70s twin or four with this Rear Fuel Tank Holder Rubber, a direct replacement for OEM...
New
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Honda CB1000 CB900 CB750 fuel tank emblem clamp nut 87311-634-600

Honda CB Fuel Tank Emblem Clamp Nut ~ Replaces 87311-634-600

$6.25 USD
99-5267
Secure your fuel tank emblem properly with this Fuel Tank Emblem Clamp Nut, designed as a direct replacement for the original Honda hardware. This...
Honda CB1100 CB1000 CB900 CB750 float bowl drain screw

Honda CB Stock Type Float Bowl Drain Screw

$6.50 USD
48-5042
Replace your stock-type float bowl drain screw with this Float Bowl Drain Screw with O-Ring for the later DOHC and Nighthawk lineup.Note: sold each,...
Honda CB750 CB550 CB500 CB400 chrome velocity stack set 4 39mm id

Honda CB Chrome Velocity Stack Set/4 ~ 39mm ID

$169.95 USD
73-1145
Open up your intake with this Chrome Velocity Stack Set of 4 with integrated debris screens. 39mm inner diameter, sold as a complete set...
Honda CB750 CB550 CB500 CB400 CB350 round pod air filter black red

Honda CB Round Pod Air Filter ~ Black/Red

$24.95 USD
15-0020
Fit performance pod filters on your SOHC CB with this 39mm Round Pod Air Filter with black body and red foam filter. Circular style...
Honda CB750 CB650 CB550 CB125 carb float 16013-405-004

Honda CB750 / CB650 / CB550 / CB125 Carb Float ~ Replaces 16013-405-004

$27.95 USD
20-6509
Replace your late-'70s CB carb float with this Carb Float with Pin, replacing OEM #16013-405-004 / #16013-393-004 / #16013-KCY-670 / #16013-MN1-671.4 carb floats are...
Honda CB750 CB550 CB400 CB350 Keihin pd carburetor felt throttle shaft seal set 6

Honda CB750 / CB550 / CB400 / CB350 Keihin PD Carburetor Felt Throttle Shaft Seal Set/6

$21.95 USD
33-0045
Replace worn or missing felt throttle shaft seals during carburetor service on compatible vintage Honda CB models with Keihin PD carburetors. These felt seals...
Honda CB550K carb holder set 16211-404-000

1977-78 Honda CB550K Carb Holder Set ~ Replaces 16211-404-000

$64.95 USD
73-0135
Replace your 1977-78 CB550K carb holders with this Carb Holder Set of 4. Replaces those old cracked or dried-up carb holders. Replaces OEM #16211-404-000...
Honda CB750 CB550 CB500 CB400 CB350 foam round pod air filter

Honda CB Foam Round Pod Air Filter

$16.95 USD
15-0095
Fit foam-media pods to your SOHC CB with this 39mm Round Foam Pod Air Filter with chrome end caps and rubber mouth. Circular style,...
New
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 CB 39mm black round pod air filter

39mm Round Pod Air Filter with Black End Cap

$24.95 USD
15-0167
Replace worn or restrictive clamp-on filters with this aftermarket 39mm round pod air filter. The black end cap gives the filter a darker custom...
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 · Fuel System Buying guide

Build the fuel-system order by component position

Carburetor kits and holders have different package counts, while the filler cap has its own gasket statement. Custom clamp-on intake products need a measured connection check rather than an assumption based on the motorcycle year.

Parts to consider

1977-78 Honda CB550K Carb Rebuild Kit One-carb rebuild kit with named internalsLists bowl and top gaskets, float needle, jet components and six various O-rings.View part 1977-78 Honda CB550K Carb Holder Set ~ Replaces 16211-404-000 Four-holder carburetor setReference 16211-404-000; read the product’s separate 45–47 mm band-clamp note.View part Honda CB750 / CB550 / CB400 Filler Cap ~ Replaces 17620-399-010 OEM-style filler cap with gasketRubber gasket already installed; the description expressly excludes an attached chain.View part

Related parts: Separately sold front tank cushion · Separate nylon throttle sleeve

Separate kit coverage from holder and float purchases

The rebuild kit supplies named internals for one carburetor; the holder product is a set of four. Those counts concern different components. Compare the planned work with each contents list, then identify whether separate floats, mounting pieces or seals are actually needed before adding more packages to the order.

Check a changed intake independently of the repair kit

The clamp-on filters specify connection sizes and product types separately from the carburetor rebuild kit. The black-cap pod asks for a 39 mm inlet check. Identify the intake currently fitted and compare the measured connection and surrounding space before treating a model-listed custom product as the appropriate purchase.

Common ordering questions

What does one carburetor rebuild kit cover?

The description expressly says one kit rebuilds one carburetor and itemizes its gaskets, needle, jet pieces and other internals. Compare the components required and the number of carburetors involved before choosing the number of kits to buy.

Is the filler cap sold with a rubber gasket?

The described OEM-style cap comes with its rubber gasket already installed and no attached chain. Compare that supplied cap with the actual tank before adding a separate seal or treating the purchase as an unidentified cap-and-chain package.

Are the featured carb holders custom pod filters?

They are a separately described set of four carb holders with their own reference and clamp note. The custom pod products are different intake purchases. Identify the required component position before using the broad fuel-system selection to choose either type.

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