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1972 Honda SL350K2 Fuel-System Parts

For a 1972 Honda SL350K2 fuel-system repair, identify whether the problem is at the tank cap, fuel tap or carburetor before buying parts. Check any changed tank or carburetors directly, because the motorcycle’s year cannot identify every component fitted today.

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Honda CB750 CB550 CB500 CB400 CB360 gas cap rubber seal 17534-323-300

Honda CB Gas Cap Rubber Seal ~ Replaces 17534-323-300

$8.19 $7.95 USD
You save $0.24
20-0039
Replace your mid-'70s Honda gas cap rubber seal with this Gas Cap Rubber Seal, replacing OEM #17534-323-300. Broad fitment across the SOHC CB750K, CB500/CB550...
Honda CB750 CB550 CB500 CB450 type filler chrome cap 17510-323-310

Honda CB OEM Type Filler Chrome Cap ~ Replaces 17510-323-310

$49.95 USD
20-0045
Replace your OEM-type filler cap with this OEM Type Gas/Fuel Tank Chrome Cap, including gasket and hinge pin with E-clip for easy installation. Replaces...
Honda CB750 CB550 CB500 CB450 CB400 gas fuel tank cap latch assembly

Honda CB Gas/Fuel Tank Cap Latch Assembly

$44.95 USD
20-0083
Replace your gas cap latch with this Gas/Fuel Tank Cap Latch Assembly. Includes a chrome latch, return spring, latch mounting pin, and C-clip.Key Features•...
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...
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 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...
Honda CB750 CB450 CB350 CB200 CB175 front cable clip 45465-270-000

Honda CB Front Cable Clip ~ Replaces 45465-270-000

$7.00 USD
73-1116
Keep your wiring clean and secure with this Front Cable Clip, designed to hold the stop switch wires neatly against the front cable. Replaces...
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)...
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...
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1972 Honda SL350K2 · Fuel System Buying guide

Follow the fault from tank closure to carburetor

The featured seal and petcock address the tank closure and threaded outlet. A linked needle-and-seat set covers a separate carburetor repair; identify the actual fault before combining these parts into one order.

Parts to consider

Honda CB Gas Cap Rubber Seal ~ Replaces 17534-323-300 Fuel-cap rubber sealSeparate rubber seal with replacement reference 17534-323-300; the application list includes SL350K (1972).View part Honda CB Fuel Petcock ~ Replaces 16950-292-000 M16 × 1.5 fuel petcockReplacement petcock with M16 × 1.5 threads and reference 16950-292-000.View part

Related parts: Float needle and seat

Check the tank before choosing its service parts

A separate rubber cap seal is available, while the petcock has an M16 × 1.5 threaded connection. A changed tank or filler cap can alter either match. Inspect the actual cap and tank connection, and choose a seal repair or tap replacement from that evidence.

Keep carburetor parts tied to the fitted assembly

The float-valve set supplies a needle and seat. It does not establish that a fuel leak originates there or that every carburetor on an SL350 uses the same internal parts. Identify the fitted carburetor and fault, then arrange the relevant sealing and fastening parts for any disassembly.

Buying questions

Will the replacement petcock fit a tank changed by a previous owner?

Check the actual tank connection for M16 × 1.5 threads, then compare outlet position and clearance. Confirm those details before relying on the bike’s original model or appearance.

Can I buy just the cap seal instead of a complete chrome cap?

A separate rubber seal is available with reference 17534-323-300. Inspect the cap and closure mechanism first so a seal-only purchase addresses the condition of the assembly you intend to retain.

Does the float-valve set include both the needle and its seat?

Both are included in the described set. Confirm their application to the fitted carburetor, and identify any bowl gasket or damaged screws needed for the same repair as separate items.

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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