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Honda CB1100 CB1000 CB900 CB750 float bowl drain screw -a
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5.0 ( 1 review)

Honda CB Stock Type Float Bowl Drain Screw ~-A

48-5042
$6.50 USD

Sold individually

In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,329 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
Browse all parts

1 product reviews

Honda CB Stock Type Float Bowl Drain Screw ~-A

Honda CB Stock Type Float Bowl Drain Screw ~-A
$6.50 USD
Description

Small part, but an important one. This float bowl drain screw with included O-ring allows you to properly drain the carburetor bowl without leaks, making maintenance and storage a lot easier.

Over time, original screws and seals can wear down, strip, or stop sealing correctly. Replacing them helps keep fuel contained and makes routine carb service more straightforward.

Key Features

• Float bowl drain screw with included O-ring
• Helps provide a proper seal during draining
• Ideal for maintenance, storage, and carb service
• Direct replacement for worn or damaged screws
• Simple install and removal
• Sold individually – order the quantity required

Fitment / Compatibility

• Honda CB750K (1977–1978)
• Honda CB750F (1977–1978) Supersport
• Honda CB750A (1976–1978) Hondamatic

• Honda CB750K (1979–1982)
• Honda CB750F (1979–1982) Supersport
• Honda CB750L (1979) Limited
• Honda CB750C (1980–1982) Custom

• Honda CB700SC (1984–1985) Nighthawk
• Honda CB750SC (1982–1983) Nighthawk

• Honda CB900C (1980–1982) Custom
• Honda CB900F (1981–1982) Supersport
• Honda CB1000C (1983) Custom
• Honda CB1100F (1983) Supersport

• Honda CB650 (1979–1982)
• Honda CB650C (1980–1981) Custom
• Honda CB650SC (1982–1985) Nighthawk

• Honda CB550F (1977) Supersport
• Honda CB550K (1977–1978)
• Honda CB550SC (1983) Nighthawk

• Honda CB400TI (1978–1979)
• Honda CB400TII (1978–1979)
• Honda CB400A (1978)
• Honda CB400T (1980–1981)
• Honda CB450T (1982)
• Honda CB450SC (1982–1986)

• Honda CB125S (1978–1979)

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Check the listed model and year, then read any fitment notes in the description.

Make Model Year
Honda CB750K 1977
Honda CB750K 1978
Honda CB750F 1977
Honda CB750F 1978
Honda CB750A Hondamatic 1976
Honda CB750A 1977
Honda CB750A 1978
Honda CB750K Standard 1979
Honda CB750K 1980
Honda CB750K 1981
Honda CB750K 1982
Honda CB750F Supersport 1979
Honda CB750F 1980
Honda CB750F 1981
Honda CB750F 1982
Honda CB750L Limited 1979
Honda CB750C Custom 1980
Honda CB750C 1981
Honda CB750C 1982
Honda CB700SC Nighthawk 1984
Honda CB700SC 1985
Honda CB750SC Nighthawk 1982
Honda CB750SC 1983
Honda CB900C Custom 1980
Honda CB900C 1981
Honda CB900C 1982
Honda CB900F Supersport 1981
Honda CB900F 1982
Honda CB1000C Custom 1983
Honda CB1100F Supersport 1983
Honda CB650 1979
Honda CB650 1980
Honda CB650 1981
Honda CB650 1982
Honda CB650C Custom 1980
Honda CB650C Custom 1981
Honda CB650SC Nighthawk 1982
Honda CB650SCD Nighthawk 1983
Honda CB650SCE Nighthawk 1984
Honda CB650SCF Nighthawk 1985
Honda CB550F3 1977
Honda CB550K3 1977
Honda CB550K4 1978
Honda CB550SC Nighthawk 1983
Honda CB400TI Hawk 1978
Honda CB400TIZ Hawk 1979
Honda CB400TII Hawk 1978
Honda CB400TIIZ Hawk 1979
Honda CB400A 1978
Honda CB400TA Hawk 1980
Honda CB400TB Hawk 1981
Honda CB450TC 1982
Honda CB450SCC Nighthawk 1982
Honda CB450SCD Nighthawk 1983
Honda CB450SCE Nighthawk 1984
Honda CB450SCF Nighthawk 1985
Honda CB450SCG Nighthawk 1986
Honda CB125S5 1978
Honda CB125S 1979

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

See full shipping details

60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

Start your return below. Wait for our instructions before mailing a part back.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

How many Honda carburetor float-bowl drain screws are included and required?

One stock-type drain screw with one O-ring is included. Listed four-cylinder models need four to replace every carburetor drain screw, twin-cylinder models need two, and listed CB125 single-cylinder models need one.

Why must the drain screw be matched to the carburetor rather than only the motorcycle?

Honda used different carburetor families across models and years. Compare screw thread, tip, head and O-ring position with the removed part and confirm the carburetor identification before installation.

How tight should a carburetor drain screw be?

Seat it only enough to seal the O-ring; excessive torque can damage the screw or crack the float bowl. Replace a hardened O-ring, clean the seat and test for fuel leakage before riding.

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