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1981 Honda CB650C Custom Carb Gaskets, Needles & Jets

The 1981 CB650C carburetor selection here consists of focused repair parts and a separate main-jet assortment. Compare the bowl gasket and float needle with the actual carburetor. Jet changes require a verified specification for the current engine, intake and exhaust configuration.

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Honda CB1100 CB1000 CB900 CB750 float bowl gasket

Honda CB1100/CB1000/CB900/CB750 Float Bowl Gasket

$9.50 USD
20-8031
1978 Honda CB400A Motorcycle Parts 1978 Honda CB400TI Motorcycle Parts 1978 Honda CB400TII Motorcycle Parts 1979 Honda CB400TIIZ Motorcycle Parts 1979 Honda CB400TIZ Motorcycle Parts 1979 Honda CB750F Motorcycle Parts 1979 Honda CB750K Motorcycle Parts 1979 Honda CB750L Motorcycle Parts 1980 Honda CB400TA Motorcycle Parts 1980 Honda CB750C Motorcycle Parts 1980 Honda CB750F Motorcycle Parts 1980 Honda CB750K Motorcycle Parts 1980 Honda CB900C Motorcycle Parts 1981 Honda CB400TB Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1981 Honda CB750C Motorcycle Parts 1981 Honda CB750F Motorcycle Parts 1981 Honda CB750K Motorcycle Parts 1981 Honda CB900C Motorcycle Parts 1981 Honda CB900F Motorcycle Parts 1982 Honda CB450SC Nighthawk Motorcycle Parts 1982 Honda CB450T Hawk Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts 1982 Honda CB750C Motorcycle Parts 1982 Honda CB750F Motorcycle Parts 1982 Honda CB750K Motorcycle Parts 1982 Honda CB750SC Motorcycle Parts 1982 Honda CB900C Motorcycle Parts 1982 Honda CB900F Motorcycle Parts 1983 Honda CB1000C Motorcycle Parts 1983 Honda CB1100F Motorcycle Parts 1983 Honda CB450SC Nighthawk Motorcycle Parts 1983 Honda CB750SC Motorcycle Parts 1984 Honda CB450SC Nighthawk Motorcycle Parts 1985 Honda CB450SC Nighthawk Motorcycle Parts Best-Selling Honda CB750 Parts & Tools Honda CB Carburetor Rebuild Kits & Jetting Parts Honda CB Fuel System & Carburetor Parts Honda CB1000 Motorcycle Parts by Model & Year Honda CB400 Motorcycle Parts by Model & Year Honda CB400T Hawk Motorcycle Parts (1978–1981) Honda CB450 Motorcycle Parts by Model & Year Honda CB450SC Nighthawk Motorcycle Parts (1982–1986) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB750 DOHC Parts (1979–1982) Honda CB750 Motorcycle Parts by Model & Year Honda CB750C Custom Motorcycle Parts (1980–1982) Honda CB750F Motorcycle Parts (1975–1982) Honda CB750K Motorcycle Parts (1969–1982) Honda CB750SC Nighthawk Motorcycle Parts (1982–1986) Honda CB900 Motorcycle Parts by Model & Year Honda CB900C Custom Motorcycle Parts (1980–1982) Honda CB900F Supersport Motorcycle Parts (1981–1982) Series 3: CB700-750SC (82-86) Series 4: CB900-1100 (80-83) Series 5: CB650 (79-82) Series 7: CB400-CB450 (65-86)
Replace your DOHC CB float bowl gasket with this Float Bowl Gasket (O-ring). Broad fitment across the 1979-82 CB750 family, CB750SC Nighthawk, CB900/CB1000/CB1100, CB650...
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
1980 Honda CB400TA Motorcycle Parts 1980 Honda CB750C Motorcycle Parts 1980 Honda CB750F Motorcycle Parts 1980 Honda CB750K Motorcycle Parts 1980 Honda CB900C Motorcycle Parts 1981 Honda CB400TB Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1981 Honda CB750C Motorcycle Parts 1981 Honda CB750F Motorcycle Parts 1981 Honda CB750K Motorcycle Parts 1981 Honda CB900C Motorcycle Parts 1981 Honda CB900F Motorcycle Parts 1982 Honda CB450SC Nighthawk Motorcycle Parts 1982 Honda CB450T Hawk Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1982 Honda CB650SC Nighthawk Motorcycle Parts 1982 Honda CB750C Motorcycle Parts 1982 Honda CB750F Motorcycle Parts 1982 Honda CB750K Motorcycle Parts 1982 Honda CB750SC Motorcycle Parts 1982 Honda CB900C Motorcycle Parts 1982 Honda CB900F Motorcycle Parts 1983 Honda CB1000C Motorcycle Parts 1983 Honda CB1100F Motorcycle Parts 1983 Honda CB450SC Nighthawk Motorcycle Parts 1983 Honda CB550SC Nighthawk Motorcycle Parts 1983 Honda CB650SC Nighthawk Motorcycle Parts 1983 Honda CB750SC Motorcycle Parts 1984 Honda CB125S Motorcycle Parts 1984 Honda CB650SC Nighthawk Motorcycle Parts 1984 Honda CB700SC Motorcycle Parts 1984 Honda CB750SC Motorcycle Parts 1985 Honda CB125S Motorcycle Parts 1985 Honda CB450SC Nighthawk Motorcycle Parts 1985 Honda CB650SC Nighthawk Motorcycle Parts 1985 Honda CB700SC Motorcycle Parts 1985 Honda CB750SC Motorcycle Parts 1986 Honda CB450SC Nighthawk Motorcycle Parts 1986 Honda CB700SC Motorcycle Parts Honda CB Carburetor Rebuild Kits & Jetting Parts Honda CB Fuel System & Carburetor Parts Honda CB1000 Motorcycle Parts by Model & Year Honda CB125 Motorcycle Parts by Model & Year Honda CB125S Motorcycle Parts (1973–1985) Honda CB400 Motorcycle Parts by Model & Year Honda CB400T Hawk Motorcycle Parts (1978–1981) Honda CB450 Motorcycle Parts by Model & Year Honda CB450SC Nighthawk Motorcycle Parts (1982–1986) Honda CB550 Motorcycle Parts by Model & Year Honda CB550SC Nighthawk Motorcycle Parts (1983–1984) Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB650SC Nighthawk Motorcycle Parts (1982–1985) Honda CB700SC Nighthawk Motorcycle Parts (1984–1986) Honda CB750 DOHC Parts (1979–1982) Honda CB750 Motorcycle Parts by Model & Year Honda CB750C Custom Motorcycle Parts (1980–1982) Honda CB750F Motorcycle Parts (1975–1982) Honda CB750K Motorcycle Parts (1969–1982) Honda CB750SC Nighthawk Motorcycle Parts (1982–1986) Honda CB900 Motorcycle Parts by Model & Year Honda CB900C Custom Motorcycle Parts (1980–1982) Honda CB900F Supersport Motorcycle Parts (1981–1982) Series 10: CB72-CB250 (59-85) Series 3: CB700-750SC (82-86) Series 4: CB900-1100 (80-83) Series 5: CB650 (79-82) Series 6: CB500-CB550 (71-78) Series 7: CB400-CB450 (65-86)
Replace your DOHC CB float needle (only) with this Float Needle, replacing OEM #16155-413-751.Key Features• Float needle (only)• Replaces OEM #16155-413-751Fitment / Compatibility• Honda...
Honda CB1100F CB750K CB650 performance main jet kit

1971 / 1981-83 Honda CB1100F / CB750K / CB650 Performance Main Jet Kit

$44.95 USD
48-2114
1971 Honda CB750K Motorcycle Parts 1981 Honda CB650 Motorcycle Parts 1981 Honda CB650C Custom Motorcycle Parts 1982 Honda CB650 Motorcycle Parts 1983 Honda CB1100F Motorcycle Parts Honda CB Carburetor Rebuild Kits & Jetting Parts Honda CB Fuel System & Carburetor Parts Honda CB650 Motorcycle Parts (1979–1982) Honda CB650 Motorcycle Parts by Model & Year Honda CB650C Custom Motorcycle Parts (1980–1981) Honda CB750 Motorcycle Parts by Model & Year Honda CB750 SOHC Parts (1969–1978) Honda CB750K Motorcycle Parts (1969–1982) Series 4: CB900-1100 (80-83) Series 5: CB650 (79-82)
Tune your 1971 CB750K, CB1100F, or CB650 with this 1971 Performance Main Jet Kit. Includes a total of 16 main jets for Keihin carbs....
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1981 Honda CB650C Custom · Carb Gaskets, Needles & Jets Buying guide

Separate sealing repairs from jet selection

The float needle is supplied alone, while the bowl gasket is a separate O-ring product. The assortment for Keihin carburetors contains four each of four main-jet sizes; that does not establish which size the motorcycle needs.

Parts to consider

Honda CB1100/CB1000/CB900/CB750 Float Bowl Gasket 1981 float-bowl gasketBowl O-ring gasket explicitly listed for the 1981 CB650C carburetor.View part Honda CB Carb Float Needle ~ Replaces 16155-413-751 Float needle onlySeparate float needle replacing reference 16155-413-751.View part 1971 / 1981-83 Honda CB1100F / CB750K / CB650 Performance Main Jet Kit Main-jet assortment for Keihin carburetorsSixteen jets: four each of #120, #122, #125 and #128. Select sizes only after checking the actual setup.View part

Choose individual service parts deliberately

The bowl O-ring and float needle are separate products with explicit 1981 Custom applications. Inspect the bowl sealing surface and metering components to determine the repair scope. Do not import the contents or quantities of a one-carb kit offered for an earlier year.

Treat the jet assortment as a tuning supply

The assortment contains 16 main jets for Keihin carburetors: four each of #120, #122, #125 and #128. It offers choices rather than a recommended jet setting or promised power gain. Verify the required fitting and size using the correct carburetor and engine information before ordering.

Carb Gaskets, Needles & Jets questions

Does the float needle include a replacement seat?

The product is described as the needle only. Inspect the actual carburetor components and select any additional service parts separately rather than assuming a complete valve-and-seat package.

How many jets does the assortment contain?

Sixteen: four of each listed size #120, #122, #125 and #128. Those package counts do not identify the correct setting for your motorcycle.

Should I fit larger jets after changing the exhaust?

Determine the appropriate specification for the complete engine and induction configuration rather than choosing a larger number automatically. A jet assortment cannot replace correct diagnosis and setup verification.

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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