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1968 Honda CB350K0 Carb Rebuild & Jetting

A useful CB350K0 carburetor order begins with the body identification and the fault being repaired. Float valves, bowl seals and fasteners serve different purposes; jet size should follow the verified carburetor specification rather than the broad application list of a replacement jet.

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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...
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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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1968 Honda CB350K0 · Carb Rebuild & Jetting Buying guide

Build the rebuild list from carburetor identity

Service parts include a Japanese-made float needle and seat, a bowl gasket and a screw kit for two carburetors. Inspect the fitted bodies before deciding which service pieces and jets are needed.

Parts to consider

Honda CB Float Needle & Seat ~ Replaces 16011-287-004 Float needle and seatMade in Japan; replacement reference 16011-287-004 for the listed CB350 carburetors.View part Honda CB550 / CB500 / CB400 / CB350 Float Bowl Gasket Float-bowl gasketBowl-sealing O-ring with a listed 1968–72 CB350K application; compare the fitted bowl shape.View part Honda CB Carburetor Screw Kit Two-carb screw kitFor two carburetors: two drain screws with O-rings plus 4 × 10, 4 × 8 and 5 × 12 mm screws.View part

Related parts: #60 primary main jet with O-ring

Use the factory table for the matching body

Honda’s May 1968 manual gives setting mark 350A a #60 primary main jet, #115 secondary main jet and #38 slow and pilot jets. Use that table only when the carburetor identity and original configuration match; later or modified bodies need their own specification.

Avoid duplicating hardware in the order

The screw kit covers two carburetors: two drain screws with O-rings, eight 4 × 10 mm screws, eight 4 × 8 mm screws and two 5 × 12 mm screws with lock washers. Float valves and bowl gaskets remain separate service choices.

Common buying questions

Can the #68 secondary jet be treated as stock for a 350A carburetor?

No. Honda’s May 1968 table specifies a #115 secondary main jet for setting mark 350A. Verify the actual carburetor and tuning requirement rather than selecting #68 from a broad model tag.

Is the screw kit also a complete carburetor rebuild kit?

It supplies the stated screws, drain screws, O-rings and lock washers for two carburetors. Choose float valves, bowl gaskets and any metering parts separately according to inspection and the correct carburetor specification.

Is a #60 primary main jet the same as a secondary main jet?

No. They serve different circuits. The linked #60 product is a press-fit primary main jet with O-ring; confirm that style and size against the carburetor before ordering.

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