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1972 Honda CB350K4 Carburetor Rebuild Kits & Jetting Parts

Before stripping the 1972 CB350K4 carburetors, identify their bodies and bowls and record the fitted jets. A one-carb rebuild kit, a needle-and-seat replacement and a two-carb screw kit cover different needs. Choose the smallest supported package that matches the planned repair.

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Currently viewing Carb Rebuild & Jetting

Honda motorcycle parts

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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 CB350 CL350K0 CL350K2 CL350K3 float needle and seat 16011-287-004

Honda CB Float Needle & Seat ~ Replaces 16011-287-004

$13.95 USD
48-1519
Replace your CB350 or CL350 float needle and seat with this Float Needle & Seat, made in Japan, replacing OEM #16011-287-004.Key Features• Float needle...
Honda CB350 CL350 slow pilot jet #38 99124-286-0380

1968-73 Honda CB350 / CL350 Slow / Pilot Jet #38 ~ Replaces 99124-286-0380

$7.00 USD
48-1588
Restore clean idle and low-speed fuel metering with this aftermarket Keihin-style slow / pilot jet, size #38. It replaces Honda OEM #99124-286-0380 for select...
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...
New
Honda CB350K CL350K carb rebuild kit

1970-73 Honda CB350K / CL350K Carb Rebuild Kit

$18.95 USD
48-1393
Rebuild your round-carb-bowl CB350 or CL350 with this Carb Rebuild Kit, designed for carbs with ROUND CARB BOWLS.Note: each kit rebuilds one carb, order...
New
Honda CB350 CL350K0 CL350K1 CL350K2 CL350K3 carburetor screw kit

Honda CB Carburetor Screw Kit

$17.57 USD
48-0795
Refresh your CB350 or CL350 / SL350 carb screws with this Carburetor Screw Kit. Enough for 2 carbs. Get a new set of screws...
Honda CB350K CB350G CL350K SL350 chrome carburetor top cover 16014-286-000

Honda CB350K / CB350G / CL350K / SL350 Chrome Carburetor Top Cover

$24.95 USD
13-0011
Aftermarket chrome carburetor top cover for the Honda 350 models listed below. It replaces a worn, damaged or missing original carburetor top cover.Product Details...
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...
Honda CB350 press fit primary main jet #60 99201-601-0600

1968-73 Honda CB350 Press Fit Primary Main Jet #60 ~ Replaces 99201-601-0600

$6.36 USD
48-1585
Restore clean carburetor fuel metering on your Honda CB350 with this aftermarket press-fit primary main jet, size #60, supplied with the sealing O-ring. It...
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1972 Honda CB350K4 · Carburetor Rebuild Parts Buying guide

Identify the carburetors before selecting rebuild parts

The round-bowl kit has a clear one-carb quantity. Needle-and-seat and hardware choices can support targeted work, while jet selection needs the fitted carburetor specification and any intake or exhaust changes.

Parts to consider

1970-73 Honda CB350K / CL350K Carb Rebuild Kit Round-bowl carburetor rebuild kitOne kit services one round-bowl carburetor. Verify the fitted bowl style before ordering a pair of kits.View part Honda CB Float Needle & Seat ~ Replaces 16011-287-004 Float needle and seatJapanese-made needle-and-seat replacement with reference 16011-287-004 for the CB350K carburetor.View part Honda CB Carburetor Screw Kit Two-carburetor screw kitHardware for two carburetors: two drain screws with O-rings, sixteen 4 mm screws and two 5 × 12 screws with lock washers.View part

Choose the right scope of rebuild

The featured kit is for round-bowl carburetors and covers one carburetor. The separate Japanese-made needle and seat references 16011-287-004. Assess which pieces are worn, then avoid automatically duplicating parts across a rebuild kit and individual repair items.

Use the hardware kit for its stated coverage

The screw kit covers two carburetors. Its detailed contents are two drain screws with O-rings, eight 4 × 10 screws, eight 4 × 8 screws and two 5 × 12 screws, with lock washers on the latter groups. Compare the original lengths and locations before fitting.

Buying questions

Will any CB350-tagged jet restore factory calibration?

No. Honda lists multiple jet sizes, and the fitted carburetors or intake may have changed. Match the jet’s function, style and size to the actual carburetor setup rather than selecting from the model tag alone.

Does one rebuild kit cover both carburetors?

The featured round-bowl kit covers one carburetor. Buy two when both installed units match the kit application and both are being rebuilt; the screw kit has separate two-carb coverage.

Can I replace only the float needle and seat?

The needle and seat are available separately with reference 16011-287-004. Choose that targeted replacement after inspection, and check the float and sealing surfaces rather than assuming every fuel-level problem needs a complete kit.

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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