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1970 Honda CB450K Carburetor Service Kits & Metering Choices

Choose carburetor service parts for your 1970 CB450K from the model fitted and the components needing renewal. The two kits describe different selection details, while the float valve and separate pilot jet target narrower repairs. Compare contents before combining them into the same order.

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Currently viewing Carb Rebuild & Jetting

Honda motorcycle parts

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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 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...
New
Honda CB450K CL450K carb rebuild kit

1968-71 Honda CB450K / CL450K Carb Rebuild Kit

$19.95 USD
48-1395
Rebuild your early 5-speed CB450 or CL450 carbs with this Carb Rebuild Kit, designed for carburetor models 14H and 14L used on 5-speed 450s.There...
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...
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1970 Honda CB450K · Carb Rebuild & Jetting Buying guide

Use the carburetor identity to compare the kits

One kit names 14H and 14L carburetors without giving detailed contents. The premium kit lists a #125 main, #40 pilot and D8 needle among its parts. Each kit services one carburetor. The separately sold #35 pilot needs a jet-pattern and size check.

Parts to consider

1965-74 Honda CB450 Premium Carb Rebuild Kit Premium kit with itemized contentsOne-carburetor kit listing bowl and top gaskets, O-rings, float needle, #2.0 seat, #125 main, #40 pilot and D8 needle among its components. Assess the listed parts against the carburetor you will service.View part 1968-71 Honda CB450K / CL450K Carb Rebuild Kit Service kit for 14H and 14L carburetorsKit listed for carburetor models 14H and 14L, with one carburetor rebuilt per kit. Read the model number on the installed carburetor. Individual jet sizes and detailed kit contents are not given in this description.View part Honda CB Float Valve ~ Replaces 16011-302-004 Replacement float needle and seatThe float-valve set names a needle and seat, with Honda references 16011-302-004 / 16011-375-004. Use those details to compare the valve parts. A replacement float is not named as part of this set.View part

Related parts: #35 pilot for a checked setup

Decide whether the valve set or wider kit fits the repair

The separate float valve consists of a needle and seat. The premium kit also lists a float needle and #2.0 seat, alongside other service parts. Check which components your carburetor requires before buying both; neither product should be assumed to supply a replacement float.

Do not turn kit contents into a tuning specification

The premium kit’s #125 main, #40 pilot and D8 needle describe what comes in it. They do not establish the calibration required by every installed carburetor. The standalone #35 pilot is another specified size, not a default replacement for the supplied #40 or an automatic choice for pods.

Practical parts selection questions

How can I compare the kits if a particular jet is essential to the repair?

The premium description names its #125 main, #40 pilot and D8 needle. The 14H / 14L kit description gives no individual jet list, so confirm its contents before choosing it for a specific jet. Do not transfer the premium specifications to the other kit.

What should I count when rebuilding both carburetors?

Both kit descriptions state one carburetor serviced per kit, so a two-carburetor repair needs two compatible kits. Check each carburetor first. Separately selected pilot jets are sold each and need their own quantity calculation.

Does buying the #35 pilot settle which size the engine needs?

The listing asks you to confirm the carburetor uses the 99124-286-style jet and that #35 is the intended size. Select it after assessing the fitted carburetor and intake arrangement. Availability for the motorcycle does not establish that every setup requires that size.

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

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