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1976 Honda CB125S3 Fuel-System Parts

Identify where the repair is needed before ordering fuel-system parts for your 1976 Honda CB125S3. The featured service choice is a float-bowl drain screw with an O-ring, supplied individually; compare it with the drain screw in the carburetor actually fitted.

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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...
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 CB125S fuel petcock 16950-365-671

1976 Honda CB125S Fuel Petcock ~ Replaces 16950-365-671

$41.26 USD
20-8050
Replace your 1976 CB125S fuel petcock with this Fuel Petcock, replacing OEM #16950-365-671.Key Features• Fuel petcock• Replaces OEM #16950-365-671• Honda part name: Petcock Assy.Fitment...
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1976 Honda CB125S3 · Fuel System Buying guide

Locate the repair before choosing a fuel part

Start at the actual repair location and identify the fitted carburetor. The pictured choice addresses its bowl drain: a screw with an included O-ring, supplied individually for a targeted replacement.

Parts to consider

Honda CB Stock Type Float Bowl Drain Screw Float-bowl drain screw with O-ringStock-type drain screw supplied with an O-ring. Sold individually; order the quantity required.View part

Identify the affected component

Use the location and identity of the existing part to narrow the order. The featured drain screw is a bowl service component; choosing it should follow a comparison with the fitted carburetor. Do not assume a previous carburetor swap retains the original screw specification.

Keep the order specific

Each order unit supplies a drain screw and O-ring. Inspect the receiving thread and sealing area as part of identifying the repair; replacing the screw cannot establish whether the bowl itself is serviceable. Use the appropriate carburetor information when the cause of leakage is uncertain.

Buying questions

What is supplied with the featured drain screw?

One float-bowl drain screw with an O-ring is supplied per order unit. Include that supplied seal when planning the repair so a second O-ring is not ordered for the same screw by assumption.

Can I select it by motorcycle year if the carburetor has changed?

Identify the fitted carburetor and compare its drain screw first. A motorcycle application is useful for an unchanged assembly, but it does not establish compatibility with an unknown replacement carburetor.

Will a new drain screw resolve every leak at the bowl?

First identify where the leak originates. The drain screw and its O-ring address one sealing point; damage to the receiving thread or bowl, or another source of leakage, calls for its own diagnosis before parts are chosen.

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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