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1975 Honda CB400F Carb Kit and Pilot Jets

The kit includes a bowl gasket, a top gasket, O-rings, a needle and seat, a main jet, a pilot jet, a needle, and an adjusting screw with spring. It still covers only one carb. A second bowl gasket does not name the CB400F.

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Currently viewing Carb Rebuild & Jetting

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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 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 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 CB550 CB500 CB400 CB350 float bowl gasket

Honda CB550 / CB500 / CB400 / CB350 Float Bowl Gasket

$7.00 USD
20-5022
Replace your float bowl gasket with this Float Bowl Gasket (O-ring), fitting the CB500K/CB550 family, CB350F Supersport, and CB350K.Key Features• Float bowl gasket (O-ring)Fitment...
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...
Honda CB550 CB500 CB400 CB350 float bowl gasket

Honda CB550/CB500/CB400/CB350 Float Bowl Gasket

$9.95 USD
20-8032
Replace your CB350F/CB400F or CL350/SL350 float bowl gasket with this Float Bowl Gasket (O-ring).Key Features• Float bowl gasket (O-ring)Fitment / Compatibility• Honda CB350F (1973‑74)...
Honda CB400F carb rebuild kit

1975-77 Honda CB400F Carb Rebuild Kit

$22.95 USD
48-1902
Rebuild your CB400F Supersport carb with this Carb Rebuild Kit, made in Japan. Contains float bowl gasket, O-rings, carb top gasket, float needle and...
Honda CB550 CB500 CB400 CB350 float valve 16011-329-004

Honda CB550 / CB500 / CB400 / CB350 Float Valve ~ Replaces 16011-329-004

$13.95 USD
48-1510
Replace your float needle and seat with this Float Valve Set (needle and seat), replacing OEM #16011-329-004.Key Features• Float valve set (needle and seat)•...
Honda CB550 CB500 CB400 CB350 secondary main jet 68 99202-601-0680

Honda CB Secondary Main Jet #68 with O-Ring ~ Replaces 99202-601-0680

$5.95 USD
48-1586
Replace a worn, damaged, or incorrect secondary main jet on compatible Honda CB Keihin carburetors with this aftermarket Keihin-type press-fit main jet in size...
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1975 Honda CB400F · Carb Rebuild & Jetting Buying guide

Kit for the carb you opened, then the jet in your hand

Buy one kit per carb. If you only need the bowl gasket, use the one that names the 1975-77 CB400F. Pick a pilot pack only after you read the size in the carb.

Parts to consider

1975-77 Honda CB400F Carb Rebuild Kit One-carb rebuild kitFloat bowl gasket, top gasket, O-rings, needle and seat, main jet, pilot jet, needle, and adjusting screw with spring. One carb per kit. Names the 1975-77 CB400F only.View part Honda CB550/CB500/CB400/CB350 Float Bowl Gasket Float bowl gasketO-ring gasket that names the 1975-77 CB400F and the 1973-74 CB350F. The other bowl gasket names CB550, CB500K, and CB350F, and it does not name the CB400F.View part Honda CB550 / CB500 / CB400 / CB350 Float Valve ~ Replaces 16011-329-004 Needle and seatFloat valve set replacing 16011-329-004. Names the 1975-77 CB400F, the CB350F, and CB550 models. It is the needle and seat, not the float.View part

Related parts: #40 pilot pack · #68 secondary main · Felt shaft seals, set of 6

Stock pilot size is a range, not one jet

The pilot text says the 1975-77 CB400F stock size is either 38, 40, or 42. The CB350F line on the same jets says 35 or 38. Do not buy a #35 pack because that number appears for the other bike. Read the jet you removed.

Confirm #68 before you call it the jet in the carb

The press-fit secondary main is size #68, includes an O-ring, replaces 99202-601-0680, and names the 1975-77 CB400F. The text says to confirm the press-fit style and the #68 size, especially if the exhaust or filters have been changed.

Jetting questions

Does one kit rebuild all the carbs?

No. Each kit rebuilds one carb. Order the quantity you need. The kit names only the 1975-77 CB400F.

Which bowl gasket names this bike?

The gasket whose fitment includes the 1975-77 CB400F. The other bowl gasket does not name the CB400F.

What pilot size should I buy?

Read the jet. The text prints stock size for this Supersport as 38, 40, or 42. Packs are four jets of one size.

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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