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1973 Honda CB450K Carburetor Kit Contents & Separate Metering Parts

Start your 1973 CB450K carburetor order with the parts being renewed and the carburetors retained. Kit application and itemized contents answer different questions. Compare a larger rebuild with a needle-and-seat repair, then choose any pilot jet from the pattern and metering size required.

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Currently viewing Carb Rebuild & Jetting

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Honda CB750 CB500 CB450 CB125 CB100 float valve 16011-302-004

Honda CB Float Valve ~ Replaces 16011-302-004

$9.95 USD
48-5009
Replace your float needle and seat with this Float Valve Set (needle and seat), replacing OEM #16011-302-004 / #16011-375-004.Key Features• Float valve set (needle...
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Honda CB450 premium carb rebuild kit

1965-74 Honda CB450 Premium Carb Rebuild Kit

$21.95 USD
48-1228
Restore smooth fuel delivery with this Premium Carburetor Rebuild Kit, designed to refresh worn components inside your carburetor and restore proper performance. This kit...
New
Honda CB450K CL450K5 CL450K6 carb rebuild kit

1972-74 Honda CB450K / CL450K5 / CL450K6 Carb Rebuild Kit

$20.95 USD
48-1396
Rebuild your later 5-speed CB450 or CL450 carbs with this Carb Rebuild Kit, designed for the 5-speed 450s.Note: each kit rebuilds one carb, order...
Honda CB500T CB450 CB360 CB350 slow pilot jet #35 99124-286-0351

Honda CB500T / CB450 / CB360 / CB350 Slow / Pilot Jet #35 ~ Replaces 99124-286-0351

$7.00 USD
48-1587
Restore clean idle and low-speed fuel metering with this aftermarket Keihin-style slow / pilot jet, size #35. It replaces Honda OEM #99124-286-0351 for the...
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1973 Honda CB450K · Carb Rebuild & Jetting Buying guide

Use written kit contents to define the service scope

The later-450 kit states its application and one-carburetor coverage. The premium kit additionally names gaskets, valve and metering components. The separate valve set and #35 pilot concern narrower repairs; check their compatibility and overlap with the kit before adding them.

Parts to consider

1972-74 Honda CB450K / CL450K5 / CL450K6 Carb Rebuild Kit Later five-speed-450 carburetor kitOne-carburetor rebuild kit with 1972–74 CB450K application stated. Match the carburetor actually retained and confirm the components central to the repair. The description gives neither a carburetor model code nor an individual jet-and-gasket contents list.View part Honda CB Float Valve ~ Replaces 16011-302-004 Float needle and seat service setSet identifying needle and seat under Honda references 16011-302-004 / 16011-375-004. Compare the valve removed from the retained carburetor. No replacement float or complete carburetor service package is itemized with this narrower repair choice.View part 1965-74 Honda CB450 Premium Carb Rebuild Kit Premium kit with named metering componentsCovers one carburetor, with bowl and top gaskets, O-rings, float needle, #2.0 seat, #125 main, #40 pilot and D8 needle listed. Compare the complete contents with the carburetor serviced; supplied sizes do not establish every installation’s required calibration.View part

Related parts: Pilot size and individual quantity decision

Keep included calibration parts separate from required settings

The premium kit lists #125 main, #40 pilot and D8 needle as supplied. The individual slow jet is #35. Those facts describe the offered parts rather than the correct settings for every carburetor or changed intake. Determine the intended metering before replacing a kit component with another size.

Check repair overlap before choosing several packages

A float needle and #2.0 seat are itemized in the premium kit. The separate valve set names needle and seat under its own Honda references. Compare the actual valve repair before adding both, and confirm the other kit’s contents where those pieces are important to the work.

Carburetor contents, quantity and jet selection questions

What if the carburetor fitted during earlier work cannot be identified?

Establish which carburetor is retained and confirm the kit’s compatibility before ordering. The later-450 listing includes the 1973 CB450K and one-carburetor coverage, but gives no carburetor model code or individual contents list. Confirm the components essential to that repair as well as the application.

How does the separate #35 pilot differ from the kit’s listed pilot?

The individual slow/pilot jet is size #35 in the 99124-286 pattern, while the premium kit lists a #40 pilot. The later-450 kit does not itemize its jets. Confirm the fitted carburetor’s pattern and intended size before choosing a separate pilot or substituting kit contents.

How should I calculate kits and pilots for a two-carburetor service?

Verify the parts required and compatibility for each carburetor first. Each kit covers one carburetor, while the separate pilot sells each. Set those purchase quantities independently and confirm the intended jet pattern and size wherever an individual pilot will be replaced.

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