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1981 Honda CB750F Fuel System Parts

The fuel system parts here cover several separate jobs on your CB750F: carburetor internals, rubber intake connections, cables, filters and tank fittings. Work from the assembly you are repairing, then compare its identification and contents before combining parts into an order.

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Honda CB1100 CB1000 Keihin pd carb felt throttle shaft seal set 6

Honda CB Keihin PD Carburetor Felt Throttle Shaft Seal Set/6

$18.95 USD
33-0043
Replace worn or missing felt throttle shaft seals on Keihin PD carburetors. These felt seals are used during carburetor service or restoration to help...
Honda CB900 CB750 CB650 air cut off valve with cover 16048-429-771

Honda CB Air Cut Off Valve With Cover ~ Replaces 16048-429-771

$34.95 USD
48-9029
Replace your carb air cut-off valve with this Carb Air Cut-Off Valve with Cover. Replaces OEM #16048-429-771 (diaphragm), #16048-425-771 (spring + 1 O-ring), and...
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1981 Honda CB750F · Fuel System Buying guide

Plan the carburetor, intake and tank work separately

Start with the assembly being serviced. A carburetor kit renews internal parts; intake holders restore an engine-side connection; a petcock must match the fitted tank. Identify the work first so each purchase has a clear place in the repair.

Parts to consider

1980-82 Honda CB750F Carb Rebuild Kit Supersport carburetor rebuild kit48-1998 includes a bowl gasket, float needle, O-rings, primary and secondary jets, pilot and slow jets, rubber plug, and mixture screw with spring.View part 1979-83 Honda CB750 Carb Holder Set ~ Replaces 16214-425-000 Four carburetor holders48-0756 is the engine-side holder set. It lists Honda references 16214-425-000, 16213-425-000, 16212-425-000 and 16211-425-000; compatible clamps are separate.View part 1981 Honda CB900 / CB750 / CB650 Fuel Petcock ~ Replaces 16950-MA4-671 Threaded fuel petcock20-8041 lists the 1981 CB750F and an M18 x 1.0 tank thread, replacing Honda 16950-MA4-671 or 16950-461-771.View part

Related parts: Stock-airbox filter · Twelve connector-tube O-rings · Throttle pull cable

Choose the rebuild kit for the parts being renewed

Basic kit 48-1402 lists a float-bowl gasket, float needle and O-rings. It is a narrower service package than the Supersport kit shown above. Each kit services one carburetor, so base the order on both the required contents and the number being rebuilt.

Match the retained airbox and throttle controls

Stock-type filter 15-0069 replaces Honda 17211-425-000 in the original airbox. Pull cable 51-2580 is listed as 47 inches overall and replaces 17910-425-020, 17910-425-030 or 17910-425-405. Compare the existing cable ends and routing if the bars or controls have changed.

Common questions

Does replacing the connector-tube O-rings require separating the carburetors?

Yes. The guidance for set 73-0831 says the carburetors must be separated enough to remove the fuel connector tubes and accelerator tube and replace their O-rings. Allow for that access when planning the job, rather than treating it as a float-bowl-only service.

What extra work should I plan when changing from the airbox to pod filters?

The 15-0037 pod-filter guidance calls for checking jetting, mixture, synchronization and throttle response after the change in intake restriction. Main-jet assortment 48-2111 offers several sizes for compatible Keihin carburetors after intake or exhaust changes; select from them through tuning the actual setup rather than assuming a supplied rebuild-kit jet settles the choice.

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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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