VintageCB750 Supplying CB Riders Since 2010

About Us Why Us? Reviews Shipping Info Returns Contact Us
Wish Lists
0 My Cart

Your cart is currently empty.

Browse all parts
Total (USD): $0.00
View cart
Menu
Search
Wish
Cart 0
My motorcycle Choose your Honda CB model

Search parts

Searching all Honda CB parts

Example: brake pads or oil filter.

1973 Honda CB450K Carburetor Work, Bowl Fittings & Tank Repairs

Locate the fuel component needing service on your 1973 CB450K before choosing a rebuild kit or separate fitting. The carburetor interiors, bowl drains and tank outlet need different comparisons. Read each product’s coverage and match the retained assemblies before calculating the parts order.

Close ×
Your saved bike Choose your Honda CB model

Shop By Category

Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Fuel System

Honda motorcycle parts

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

Honda CB front fuel tank holder rubber 17611-283-010

Honda CB Front Fuel Tank Holder Rubber ~ Replaces 17611-283-010

$7.87 USD
02-6534
Secure the front of your fuel tank with this Front Fuel Tank Holder Rubber, a direct replacement for OEM #17611-283-010. Fits a broad range...
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...
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...
Honda CB750 CB450 CB350 CL350K3 gas cap rubber seal 17525-300-000

Honda CB Gas Cap Rubber Seal ~ Replaces 17525-300-000

$5.95 USD
20-0038
Replace your early Honda gas cap rubber seal with this Gas Cap Rubber Seal, replacing OEM #17525-300-000. Fits the earliest CB750K, CB450K/CL450K, and CB350K/CL350K/SL350K.Key...
New
Sold out
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 CB550 CB450 CB400F fuel tank cap latch 17510-323-310

Honda CB Matte Black Fuel Tank Cap with Latch ~ Replaces 17510-323-310

$69.95 USD
07-9967
Restore your classic Honda's tank with a factory-look matte-black finish using this Matte Black OEM-Type Fuel Tank Cap with Latch Assembly. A direct replacement...
New
Honda CB450 premium carb rebuild kit

1965-74 Honda CB450 Premium Carb Rebuild Kit

$21.95 USD
48-1228
Restore smooth fuel delivery with this Premium Carburetor Rebuild Kit, designed to refresh worn components inside your carburetor and restore proper performance. This kit...
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,...
View details
New
Honda CB450K CL450K5 CL450K6 carb rebuild kit

1972-74 Honda CB450K / CL450K5 / CL450K6 Carb Rebuild Kit

$20.95 USD
48-1396
Rebuild your later 5-speed CB450 or CL450 carbs with this Carb Rebuild Kit, designed for the 5-speed 450s.Note: each kit rebuilds one carb, order...
Honda CB750 CB550 CB400F CB450 CB360 tank cap latch assembly black

Honda CB Gas/Fuel Tank Cap Latch Assembly ~ Black

$29.95 USD
01-9934
Replace a broken, missing, or worn-out fuel cap latch with this Gas/Fuel Tank Cap Latch Assembly in black. Includes the black latch, return spring,...
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...
View details
Honda CB750 CB550 joker machine black gas tank cap latch assembly

Honda CB Joker Machine Black Gas Tank Cap Latch Assembly

$79.95 USD
73-1157
Upgrade your fuel tank latch with the Joker Machine Custom Black Gas/Fuel Tank Cap Latch Assembly. Designed as a premium alternative to the discontinued...
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...
compare

1973 Honda CB450K · Fuel System Buying guide

Follow the repair location from tank connection to bowl

The premium kit itemizes internal carburetor components, while a drain screw is a separately described bowl fitting. The petcock specifies a tank thread that needs verification. A cap, latch or seal addresses another location; identify the actual repair before combining those purchases.

Parts to consider

1965-74 Honda CB450 Premium Carb Rebuild Kit Premium kit with named metering componentsCovers one carburetor, with bowl and top gaskets, O-rings, float needle, #2.0 seat, #125 main, #40 pilot and D8 needle listed. Compare the complete contents with the carburetor serviced; supplied sizes do not establish every installation’s required calibration.View part Honda CB Fuel Petcock ~ Replaces 16950-292-000 Petcock with a specified tank threadReplacement referencing Honda 16950-292-000 and M16 × 1.5 threads. Verification of the thread is explicitly requested. Compare the tank outlet you will retain before choosing it, including any tank changed during previous work.View part Honda CB Stock Type Float Bowl Drain Screw Individual drain fitting with O-ringFloat-bowl drain screw described with an O-ring and sold each. Match the old screw and sealing location to the bowl retained. Thread pitch, diameter and full seat dimensions are not specified for comparing a changed bowl.View part

Related parts: Later-450 single-carburetor coverage · Compatible vacuum adapters and access · Universal filter measurement and tuning

Plan the internal repair from each kit’s stated coverage

Both carburetor kits cover one carburetor per purchase. The premium kit names needle, seat, gaskets and metering pieces; the other kit needs confirmation of any required component not itemized. A standalone valve set may overlap listed kit contents, while a bowl drain fitting still needs its own match.

Check universal accessories on the carburetors actually used

A two-gauge synchronizer needs compatible accessible vacuum connections despite the included 5mm-threaded extensions. The pod requires inlet outside-diameter measurement, clearance and assessment of possible tuning. Establish those details from the retained carburetors rather than treating the motorcycle application as a complete installation specification.

Identifying fuel repair coverage and connections

How should I plan a repair involving only one carburetor?

Check that carburetor’s identity and the components needing renewal, then compare the kit or individual repair choice. Both kits cover one carburetor. A valve set, pilot or drain screw has separate contents and compatibility checks, so a single-location repair does not require every fuel component offered.

What does the petcock reference establish if my tank is aftermarket?

It identifies the intended replacement under Honda 16950-292-000, with M16 × 1.5 threads. The description still requires a thread check. Compare the actual aftermarket outlet and attachment before choosing the valve; the motorcycle year cannot determine a substituted tank’s fitting.

What metering parts are listed in the premium rebuild kit?

The premium kit lists a #125 main jet, #40 pilot jet and D8 needle, alongside a #2.0 seat and float needle. These are supplied contents for one carburetor. Identify the fitted carburetor and intended metering before assuming those sizes suit a changed setup.

Not sure which part you need?

Send your model and year, plus photos of your existing part and any changes to the original setup.

Ask a fitment question
Parts categories for 1973 Honda CB450K

Your cart

×