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1983 Honda CB650SC Nighthawk Fuel-System Parts

Fuel-system ordering for the 1983 CB650SC should follow the source of the problem: a carburetor, its float components or the tank valve. The rebuild kit covers one carburetor, while the float includes its pin. Confirm the fitted tank and carburetors before placing an order.

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Honda motorcycle parts

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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 CB1100 CB1000 CB900 CB750 CB700 carb float needle 16155-413-751

Honda CB Carb Float Needle ~ Replaces 16155-413-751

$8.95 USD
48-5011
Replace your DOHC CB float needle (only) with this Float Needle, replacing OEM #16155-413-751.Key Features• Float needle (only)• Replaces OEM #16155-413-751• Honda part name:...
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...
New
Honda CB650SC CB550SC fuel petcock 16950-MA6-035

1983-85 Honda CB650SC / CB550SC Fuel Petcock ~ Replaces 16950-MA6-035

$54.95 USD
33-0010
Keep fuel flowing reliably to your carburetors with this Fuel Petcock, designed as a direct replacement for several original Honda fuel valve assemblies. This...
Honda CB1000 CB900 CB750 pilot jet set size 35 (pk 4) 99103-GY6-0350

Honda CB Pilot Jet Set ~ Size #35 (Pk/4) ~ Replaces 99103-GY6-0350

$14.95 USD
73-1004
Refresh your low-speed performance with this Pilot Jet Set of 4 in size #35, replacing OEM #99103-GY6-0350.Pilot jets handle your idle and low-speed operation...
New
Honda CB650SC carb rebuild kit

1983-85 Honda CB650SC Carb Rebuild Kit

$15.50 USD
48-1400
Rebuild your CB650SC Nighthawk carb with this Carb Rebuild Kit.Note: each kit rebuilds one carb, order the quantity you require.Key Features• Carb rebuild kit•...
New
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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 CB front fuel tank rubber cushion 17611-KE8-000

Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000

$5.50 USD
27-5520
This aftermarket front fuel tank rubber cushion replaces Honda OEM 17611-KE8-000 on the listed Honda CB-series applications. It mounts to the frame and supports...
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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Honda CB700 CB650 CB550 CB450 fuel petcock repair kit

Honda CB700 / CB650 / CB550 / CB450 Fuel Petcock Repair Kit

$27.95 USD
20-0020
Rebuild your Nighthawk fuel petcock with this Fuel Petcock Repair Kit. Includes a diaphragm, spring, and 2 O-rings.Key Features• Fuel petcock repair kit• Includes...
New
Honda CB700 CB650 CB550 fuel tank front rubber cushion 17611-KE8-000

Honda CB Genuine Honda 17611-KE8-000 Fuel Tank Front Rubber Cushion ~ Replaces 17611-KE8-000

$17.95 USD
99-5145
This genuine Honda front fuel tank rubber cushion mounts to the frame and supports the front of the gas tank on select classic Honda...
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1983 Honda CB650SC Nighthawk · Fuel-System Parts Buying guide

Choose parts for the leaking or worn assembly

A carburetor rebuild kit, float with pin and complete petcock are separate repair paths. Use the later CB650SC applications and compare the parts fitted to the motorcycle.

Parts to consider

1983-85 Honda CB650SC Carb Rebuild Kit One-carburetor rebuild kitRebuild kit specifically listed for the 1983–85 CB650SC. Each kit covers one carburetor.View part Honda Nighthawk Carb Float with Pin ~ Replaces 16013-KR3-980 Carburetor float with pinFloat supplied with its pin, replacing references 16013-KR3-980 and 16013-MA6-003.View part 1983-85 Honda CB650SC / CB550SC Fuel Petcock ~ Replaces 16950-MA6-035 Replacement fuel petcockFuel valve listed for the 1983–85 CB650SC, including reference 16950-ME5-005.View part

Plan carburetor quantity explicitly

The featured rebuild kit is specified for one carburetor. The separate float includes a pin, while the float needle is offered as its own product elsewhere in the selection. Check the required components before combining individual parts with rebuild packages.

Inspect the petcock and tank together

The replacement valve lists the 1983–85 CB650SC application. A changed tank can have a different connection or clearance. Compare the installed valve, tank fitting and outlet arrangement before selecting a complete replacement or deciding to repair the existing one.

Fuel-System Parts questions

Does the later-Nighthawk kit list enough detail to assume it includes every float-valve part?

The listing establishes one-carburetor coverage but does not itemize its internal components. Confirm any essential needle, gasket or other part before combining purchases. A complete four-carburetor rack requires four kits, not one.

Can a new float needle cure a worn or corroded seat?

No. Inspect the mating seat and fuel inlet for wear, corrosion or debris. The separate needle product does not include a seat; establish the correct additional repair when the existing seat cannot seal, then verify free float movement and fuel shutoff.

Will the petcock fit any aftermarket tank?

The model application does not establish compatibility with a changed tank. Compare the tank fitting, valve mounting and available hose clearance before ordering.

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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