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1973 Honda CB750K Carb Rebuild & Jetting

A carburetor refresh can mean replacing a bowl seal, a needle and seat, or a fuller set of service parts. These 1973 Honda CB750K choices include rebuild kits and separate jets. Read the contents before deciding how much to replace.

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Honda CB750F CB750K float bowl gasket

1969-76 Honda CB750F / CB750K Float Bowl Gasket

$5.33 USD
20-8035
Replace your SOHC CB750 float bowl gasket with this Float Bowl Gasket (O-ring). Fits the 1969-76 CB750K and 1975-76 CB750F Supersport.Key Features• Float bowl...
Honda CB750K carb rebuild kit

1970-75 Honda CB750K Carb Rebuild Kit

$25.95 USD
48-1908
Rebuild your 1970-75 CB750K carb with this Carb Rebuild Kit, made in Japan. Contains float bowl gasket, O-rings, carb top gasket, float needle and...
Honda CB1000 CB900 CB750 performance main jet kit

Honda CB1000 / CB900 / CB750 Performance Main Jet Kit

$39.95 USD
48-2111
Tune your CB to match your engine mods with this Performance Main Jet Kit. Includes a total of 16 main jets for Keihin carbs....
Honda CB750 CB550 CB500 CB400 CB350 pilot jet set size 45 (pk 4)

Honda CB Pilot Jet Set ~ Size #45 (Pk/4)

$15.95 USD
48-3105
Tune your low-speed circuit with this Pilot Jet Set of 4, size #45. Jet height 28mm, outer diameter 5.5mm.Pilot jets control your idle and...
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...
Honda CB1000 CB900 CB750 CB700 ultimate performance main jet kit

Honda CB1000 / CB900 / CB750 / CB700 Ultimate Performance Main Jet Kit

$64.95 USD
48-2112
Cover every tuning scenario with this Ultimate Performance Main Jet Kit. Includes a total of 44 main jets for Keihin carbs. Use this jet...
Honda CB Pilot Jet Set ~ Size #42 (Pk/4)

Honda CB Pilot Jet Set ~ Size #42 (Pk/4)

$15.95 USD
48-3104
Tune your low-speed circuit with this Pilot Jet Set of 4, size #42. Jet height 28mm, outer diameter 5.5mm.Pilot jets control your idle and...
Honda CB750 CB550 CB500 CB400 CB350 pilot jet set size 40 (pk 4)

Honda CB Pilot Jet Set ~ Size #40 (Pk/4)

$15.95 USD
48-3103
Tune your low-speed circuit with this Pilot Jet Set of 4, size #40. Jet height 28mm, outer diameter 5.5mm.Pilot jets control your idle and...
Honda CB750K carburetor needle jet holder 16139-300-004

1969-75 Honda CB750K Carburetor Needle Jet Holder ~ Replaces 16139-300-004

$19.95 USD
48-9032
Replace your CB750K needle jet holder with this Carburetor Needle Jet Holder, replacing OEM #16139-300-004.Note: sold each.Key Features• Carburetor needle jet holder• Replaces OEM...
Honda CB750 CB550 CB500 CB400 CB350 pilot jet set size 38 (pk 4)

Honda CB Pilot Jet Set ~ Size #38 (Pk/4)

$15.95 USD
48-3102
Tune your low-speed circuit with this Pilot Jet Set of 4, size #38. Jet height 28mm, outer diameter 5.5mm.Pilot jets control your idle and...
Honda CB750 CB550 CB500 CB400 CB350 pilot jet set size 35 (pk 4)

Honda CB Pilot Jet Set ~ Size #35 (Pk/4)

$15.95 USD
48-3100
Tune your low-speed circuit with this Pilot Jet Set of 4, size #35. Jet height 28mm, outer diameter 5.5mm.Pilot jets control your idle and...
Honda CB750 CB550 CB500 CB400 CB350 pilot jet set size 48 (pk 4)

Honda CB Pilot Jet Set ~ Size #48 (Pk/4)

$15.95 USD
48-3106
Tune your low-speed circuit with this Pilot Jet Set of 4, size #48. Jet height 28mm, outer diameter 5.5mm.Pilot jets control your idle and...
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1973 Honda CB750K · Carb Rebuild & Jetting Buying guide

Separate carburetor repairs from jet selection

Decide whether you need a full single-carburetor kit or a narrower seal, float-valve or jet order. The supplied #110 main and #40 pilot are package contents, not proof of the correct setup for altered carburetors.

Parts to consider

1970-75 Honda CB750K Carb Rebuild Kit Single-carburetor rebuild kitIncludes a #110 main jet, #40 pilot jet, float needle and seat, gaskets, O-rings and adjusting parts.View part Honda CB Float Valve ~ Replaces 16011-302-004 Float needle and seat setSeparate float valve set, listed against OEM 16011-302-004 and 16011-375-004.View part 1969-76 Honda CB750F / CB750K Float Bowl Gasket Float bowl gasketBowl O-ring for the listed CB750K carburetor application when this is the seal you need.View part

Related parts: #40 pilot jets, set of four · Keihin main jet assortment

Buy the rebuild scope you need

The single-carburetor kit covers jets, the needle and seat, gaskets, O-rings and adjusting pieces. A separate float valve or bowl gasket may suit a smaller repair. Compare the work required before duplicating those parts in a full-kit order.

Select jets by specification

The Keihin main-jet assortment contains four each of #105, #110, #115 and #120. The separate #40 pilot-jet pack contains four jets, specified at 28 mm high and 5.5 mm outside diameter. Compare jet type and dimensions as well as the stamped number.

Common questions

Which jets are supplied in the rebuild kit?

A #110 main jet and a #40 pilot jet. Those are the kit’s supplied sizes; identify the installed carburetors and intended intake/exhaust setup before deciding to use them.

How many rebuild kits should I order?

One kit rebuilds one carburetor. Order for the number being serviced and check the contents against any separate gasket, needle-and-seat or jet purchases.

Is the number 40 enough to identify the pilot jet?

Compare the jet’s physical form too. The offered four-pack is #40 with a stated 28 mm height and 5.5 mm outside diameter. A matching number alone does not confirm that an unknown carburetor uses this jet type.

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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