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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
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
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 CB1100F CB750K CB650 performance main jet kit

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

$44.95 USD
48-2114
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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