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1983 Honda CB550SC Carb Floats, Drain Screws & Shaft Seals

The 1983 Honda CB550SC carburetor component choices include a float with pin, individually sold drain screws with O-rings and a twelve-piece throttle-and-choke shaft seal set. Compare the existing carburetor and the specific part being replaced before selecting a package.

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Currently viewing Carb Floats & Other Carb Components

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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,...
Honda CB1100 CB1000 CB900 carb felt throttle and choke shaft seal set 12

Honda CB Carburetor Felt Throttle & Choke Shaft Seal Set/12

$32.95 USD
33-0044
Replace worn or missing felt throttle and choke shaft seals during carburetor service on compatible vintage Honda CB models. These felt seals are used...
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Honda CB700SC CB650SC CB550SC carb float 16013-KR3-980

Honda Nighthawk Carb Float with Pin ~ Replaces 16013-KR3-980

$19.95 USD
07-4650
Rebuild your Nighthawk's carburetor with this Carb Float with Pin, replacing OEM #16013-KR3-980 / #16013-MA6-003. A critical float for proper fuel metering on the...
Honda CB1100 CB1000 Keihin pd carb felt throttle shaft seal set 6

Honda CB Keihin PD Carburetor Felt Throttle Shaft Seal Set/6

$18.95 USD
33-0043
Replace worn or missing felt throttle shaft seals on Keihin PD carburetors. These felt seals are used during carburetor service or restoration to help...
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1983 Honda CB550SC · Carb Components Buying guide

Separate the float, bowl hardware and shaft seals

The float includes its pin; the drain screw includes an O-ring; the felt seal set states twelve pieces. These contents identify three different orders, and do not establish a complete carburetor service kit.

Parts to consider

Honda Nighthawk Carb Float with Pin ~ Replaces 16013-KR3-980 Nighthawk float with pinFloat referencing 16013-KR3-980 and 16013-MA6-003, with a pin included.View part Honda CB Stock Type Float Bowl Drain Screw Bowl drain screw with O-ringStock-type drain screw, expressly sold each, with an O-ring included.View part Honda CB Carburetor Felt Throttle & Choke Shaft Seal Set/12 Throttle and choke shaft feltsSet of twelve for compatible carburetors; the description includes the 1983 CB550SC.View part

Check the drain screw description before counting

The selected stock-type drain screw is sold each and includes an O-ring. A second listing describes the same SKU and application with a different title suffix and photograph. Compare the fitted screw and confirm any difference before assuming that the two listings identify distinct designs.

Choose shaft seals by carburetor application

The twelve-piece set describes throttle and choke shaft felts for compatible constant-vacuum carburetors. Another set is explicitly conditional on Keihin PD carburetors. Check the actual carburetor type before selecting shaft seals; the motorcycle name alone does not resolve those application conditions.

Carb Components questions

Is the float supplied with its pin?

Yes. The float description includes a pin and references OEM 16013-KR3-980 and 16013-MA6-003. It does not give a per-bike count or multi-float package quantity, so confirm the number required separately.

How many felts are in the selected seal set?

The throttle-and-choke shaft seal set is expressly twelve pieces. Its description names compatible constant-vacuum applications and includes the CB550SC; compare the carburetors fitted before treating the model listing as a complete type check.

Does one drain-screw order include four screws?

The selected drain screw is sold each, with an O-ring. The description does not identify a four-screw package. Count the screws needing replacement rather than deriving an order quantity from the number of carburetors.

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

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