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1968 Honda CB350K0 Fuel-System Parts

The first CB350’s fuel system joins an early-style tank to twin constant-velocity carburetors. Check the hardware actually fitted before ordering, especially on a restored bike: tank connections, carburetor identification and kit contents answer different parts of the buying decision.

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Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

Honda CB750 CB550 CB450 CB400 CB350 gas cap rubber seal 17631-329-003

Honda CB Gas Cap Rubber Seal ~ Replaces 17631-329-003

$7.95 USD
20-0097
Replace the broad-fitment gas cap rubber seal on many classic Hondas with this Gas Cap Rubber Seal, replacing OEM #17631-329-003. Exceptionally wide fitment covering...
Honda CB750 CB550 CB500 CB450 CB400 float bowl drain screw

Honda CB Stock Type Float Bowl Drain Screw

$7.50 USD
48-5041
Replace your stock-type float bowl drain screw with this Float Bowl Drain Screw with O-Ring.Note: sold each, order the quantity you require.Key Features• Stock-type...
New
Honda CB550 CB500 CB360 rear fuel tank holder rubber 17613-286-000

Honda CB Rear Fuel Tank Holder Rubber ~ Replaces 17613-286-000

$9.95 USD
12-0133
Restore proper rear fuel tank mounting on your mid-'70s twin or four with this Rear Fuel Tank Holder Rubber, a direct replacement for OEM...
New
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Honda CB1000 CB900 CB750 fuel tank emblem clamp nut 87311-634-600

Honda CB Fuel Tank Emblem Clamp Nut ~ Replaces 87311-634-600

$6.25 USD
99-5267
Secure your fuel tank emblem properly with this Fuel Tank Emblem Clamp Nut, designed as a direct replacement for the original Honda hardware. This...
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 CB450 CB360 CB350 CL350K0 CL350K2 fuel petcock 16950-292-000

Honda CB Fuel Petcock ~ Replaces 16950-292-000

$34.95 USD
29-0542
Replace your CB450, CL450, CB350, or CB360 fuel petcock with this Fuel Petcock, replacing OEM #16950-292-000 with M16 x 1.5 threads. Please verify the...
New
Honda CB450 CL450 CB350 CB72 gas tank filler cap 17620-402-000

Honda Gas Tank Filler Cap ~ Replaces 17620-402-000

$7.95 USD
07-4647
Restore an early-era Honda with this Chrome Gas Tank Filler Cap (with gasket installed), replacing OEM #17620-402-000 / #17620-402-010. Fits the oldest models in...
Universal motorcycle carburetor synchronizer vacuum gauge 2 carb synchronizer

Universal Motorcycle Carburetor Synchronizer Vacuum Gauge ~ 2 Carb Synchronizer

$54.95 USD
37-0003
Carburetor and throttle body synchronizer kit for bikes with 2 Carbs. Makes synching your carburetor setup fast and easy! For use with Honda, Kawasaki,...
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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...
Universal motorcycle 49mm chrome cap pod air filter

Universal Motorcycle 49mm Chrome Cap POD Air Filter

$24.95 USD
15-0034
49mm Chrome Cap POD Air Filter for custom or restoration work on classic Honda CB motorcycles. Measure the outside diameter of the carburetor inlet...
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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 CB350 CL350K0 CL350K2 carb holder w gasket 16211-286-040

Honda CB Carb Holder with Gasket ~ Replaces 16211-286-040

$27.03 USD
48-1473
Replace a single CB350 or CL350 carb holder with gasket using this Carb Holder with Gasket, replacing OEM #16211-286-040 (holder) and #16229-369-000 (gasket).Note: this...
Honda CB front fuel tank rubber cushion 17611-KE8-000

Front Fuel Tank Rubber Cushion ~ Replaces Honda OEM 17611-KE8-000

$5.50 USD
27-5520
This aftermarket front fuel tank rubber cushion replaces Honda OEM 17611-KE8-000 on the listed Honda CB-series applications. It mounts to the frame and supports...
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 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...
New
Honda CB700 CB650 CB550 fuel tank front rubber cushion 17611-KE8-000

Honda CB Genuine Honda 17611-KE8-000 Fuel Tank Front Rubber Cushion ~ Replaces 17611-KE8-000

$17.95 USD
99-5145
This genuine Honda front fuel tank rubber cushion mounts to the frame and supports the front of the gas tank on select classic Honda...
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Honda CB350 CL350K0 CL350K1 carb diaphragm rubber 16022-287-004

Honda CB Carb Diaphragm Rubber ~ Replaces 16022-287-004

$23.45 USD
48-1985
Replace your carburetor top diaphragm rubber with this Carburetor Top Diaphragm Rubber. Outer dimension 72mm, inner dimension 25mm. Replaces the diaphragm rubber on Honda...
Honda CB350 CB125 CB100 CB77 CB72 carb float 16013-286-014

Honda CB Carb Float ~ Replaces 16013-286-014

$22.95 USD
20-6500
Replace your carb float with this Carb Float with Pin, replacing OEM #16013-286-014. Fits the CB350F 1973, CB350K/CL350K/SL350, and the earliest classics including CB72/CB77...
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1968 Honda CB350K0 · Fuel System Buying guide

Identify the tank and carburetors independently

Choose tank hardware by its connection and cap design, and carburetor service pieces by the fitted bodies. Previous tank or carburetor swaps can matter more than the model tag on a broad replacement listing.

Parts to consider

Honda CB Fuel Petcock ~ Replaces 16950-292-000 M16 fuel petcockM16 × 1.5 mm tank connection; replacement reference 16950-292-000.View part Honda Gas Tank Filler Cap ~ Replaces 17620-402-000 Chrome tank filler capReplacement for 17620-402-000 or 17620-402-010, supplied with its gasket installed.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

Check the tank as a complete assembly

The chrome filler cap comes with its gasket installed. The petcock uses an M16 × 1.5 mm connection, which should be checked directly if the tank has changed. Compare cap engagement, tap clearance and hose routing before selecting replacements.

Use carburetor identity to choose service parts

The screw kit is sized for two carburetors and includes both drain screws with O-rings. Jet selection is a separate decision: identify the carburetor and its existing setup before buying a size, particularly with changed air filters, exhaust or previous tuning work.

Common buying questions

Will the petcock fit a replacement tank?

Only if its connection and layout match. Verify the M16 × 1.5 mm tank fitting, then compare outlet routing and clearance. A tank swap can change fitment even on an otherwise original K0.

Does the two-carb screw kit include drain screws?

Yes. It contains 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.

Should I use every jet size listed for the CB350?

Choose by the actual carburetor and required specification. A broad model application does not identify the factory size for every carburetor version, nor the correct tuning for a modified intake or exhaust.

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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