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1977 Honda CB550F Carb Floats, Bowl Drains & O-Rings

Inspect the float and bowl-drain parts on your 1977 Honda CB550F before ordering. The current choices include a float with pin, individually sold drain screws with seals and a four-pack of drain O-rings; match the actual drain style rather than assuming every listed screw is identical.

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Currently viewing Carb Floats & Other Carb Components

Honda motorcycle parts

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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 CB550 CB500 float bowl drain screw o-rings pk 4

Honda CB750 / CB550 / CB500 Float Bowl Drain Screw O-Rings Pk/4

$5.95 USD
48-0793
Replace your float bowl drain screw with O-ring on these earlier models with this Float Bowl Drain Screw with O-Ring 4-Pack.Key Features• Float bowl...
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 CB450 CB400 float bowl drain screw

Honda CB Stock Type Float Bowl Drain Screw

$7.50 USD
48-5041
Replace your stock-type float bowl drain screw with this Float Bowl Drain Screw with O-Ring.Note: sold each, order the quantity you require.Key Features• Stock-type...
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,...
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,...
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Honda CB550F CB550K CB500K CB500T carburetor screw kit

1971-77 Honda CB550 / CB500 Carburetor Screw Kit

$17.50 USD
49-0773
Refresh your CB500 or CB550 carb screws with this Carburetor Screw Kit. Get a new set of screws to clean up the look of...
Honda CB550F CB550K CB500K carb float setting tool

1971-77 Honda CB550F / CB550K / CB500K Carb Float Setting Tool

$15.94 USD
73-0888
Set your carb floats with ease using this Carb Float Setting Tool. Use this tool to help set your floats with ease. This pre-set...
Honda CB550F CB550K CB500K carb float 16013-329-004

1971-77 Honda CB550F / CB550K / CB500K Carb Float ~ Replaces 16013-329-004

$28.95 USD
20-6511
Replace your CB500 or CB550 carb float with this Carb Float with Pin, replacing OEM #16013-329-004.4 carb floats are used per bike, order the...
Honda CB550F carb bolt kit

1975-77 Honda CB550F Carb Bolt Kit

$23.95 USD
73-1045
Restore your carburetor hardware with this Carburetor Bolt and Washer 36-Piece Kit, a complete bolt kit for all 4 carburetors.Key Features• Carburetor bolt and...
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1977 Honda CB550F · Carb Floats & Drain Parts Buying guide

Choose a float, sealed screw or seal-only repair

A worn screw and a damaged O-ring can call for different purchases. Check the drain itself and its sealing surface, while treating the float and float-setting tool as separate parts of carburetor service.

Parts to consider

1971-77 Honda CB550F / CB550K / CB500K Carb Float ~ Replaces 16013-329-004 Replacement float and pinFloat with pin for reference 16013-329-004; four floats used per motorcycle.View part Honda CB Stock Type Float Bowl Drain Screw ~-A 1977-application bowl drain screwIndividual replacement screw with an O-ring; compare the drain fitted to your carburetor.View part Honda CB Float Bowl Drain Screw O-Rings Pk/4 Bowl-drain O-ring four-packFour drain-screw O-rings, with a stated 1977 CB550F application; compare the fitted seals.View part

Related parts: Model-application float-setting gauge · 36-piece carb hardware kit · Separate air-screw needle O-ring

Compare the drain before choosing between listings

The featured screw is sold individually with its O-ring; the O-ring pack is a seal-only purchase. This category also contains other drain-screw listings. Compare the screw and seal arrangement actually fitted, especially on replacement carburetors, rather than treating the shared motorcycle application as proof that all drain styles interchange.

Keep the float, gauge and hardware jobs distinct

The float includes its pin, but it is not a needle-and-seat valve. The linked gauge is a pre-set tool for the listed carburetor application. The 36-piece bolt and washer kit covers hardware for all four carburetors; it does not supply replacement floats or drain seals.

Your buying questions

Should I buy both a drain screw and an O-ring pack for the same repair?

The featured drain screw already includes an O-ring. The separate four-pack is useful when suitable screws are being retained and the seals need renewal. Inspect each drain and compare the seal style before deciding whether those purchases overlap.

How do I decide the number of replacement floats?

Four floats are used across the motorcycle, but select the quantity that needs replacement. Inspect each float and the related valve independently; the per-bike count does not mean that every float must be replaced for one carburetor repair.

Can the pre-set gauge be used after a carburetor swap?

It is specified for the listed carburetor application. Identify the replacement carburetors and follow their service specification before using a model-specific pre-set gauge. The original motorcycle year cannot establish the correct float setting for a changed carburetor.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

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