Yamaha Outboard Carburetor for 4HP/5HP F4S and F4L 4-Stroke Engines – 6BV-14301-09, 6BV-14301-10, 6BV-14301-11

Product Details

This carburetor is specified for Yamaha outboard 4-stroke applications rated at 4HP or 5HP, including the F4S and F4L model designations. It is intended to provide fuel metering for the engine's intake system and support normal starting, idling, acceleration, and running operation when correctly matched to the engine.

The listed Yamaha reference numbers for this carburetor are 6BV-14301-09, 6BV-14301-10, and 6BV-14301-11. Confirm the model designation and reference number on your engine before ordering, because carburetor fitment can vary by engine configuration and production details.

• Carburetor for Yamaha 4-stroke outboard applications
• Listed for 4HP and 5HP Yamaha F4S and F4L models
• Suitable for gasoline-powered marine engine applications
• Sold as one carburetor

Part Number Matrix

Use the following Yamaha reference numbers when checking the replacement part against your existing carburetor and engine documentation.

Engine & Model Compatibility

The company fitment listing identifies this carburetor for Yamaha 4HP and 5HP 4-stroke outboards in the F4S and F4L model series. Keep the horsepower, model designation, and 4-stroke configuration together when checking fitment.

Technical Specs

Part Type

Carburetor

Compatible Brand

Yamaha Outboard

Engine Type

4-Stroke

Rated Horsepower Applications

4HP and 5HP

Model Fitment

F4S and F4L

Yamaha Reference Numbers

6BV-14301-09, 6BV-14301-10, 6BV-14301-11

Product Format

Single carburetor

What's in the Box

• 1 × Carburetor

Gaskets, seals, linkages, and other installation hardware are not identified in the package information. Inspect the existing parts and verify the required installation components before beginning service.

Installation Notes

1. Disconnect the fuel supply, remove the engine cowling, and allow the engine to cool before servicing.
2. Photograph or mark the existing fuel line, throttle linkage, choke linkage, and mounting arrangement before removal.
3. Disconnect the fuel line and control linkages from the existing carburetor.
4. Remove the mounting fasteners and carefully separate the carburetor from the intake assembly.
5. Inspect the mounting surfaces, gasket, fuel line, and linkage components for damage or deterioration.
6. Install the replacement carburetor using a suitable new gasket or seal where required. A gasket is not listed as included with this product.
7. Reconnect the fuel line and control linkages, confirming that each connection is secure and moves freely.
8. Tighten the mounting hardware according to the applicable Yamaha service information; do not guess torque values.
9. Prime the fuel system and check carefully for leaks before starting the engine.
10. Start and test the engine in a safe, well-ventilated area with appropriate water supply and follow the engine service manual for idle or mixture adjustments.

Troubleshooting & FAQ

Will this carburetor fit my Yamaha 4HP or 5HP engine?

The listed fitment is for Yamaha 4-stroke 4HP and 5HP outboards in the F4S and F4L model series. Compare your engine's model designation and one of the listed Yamaha reference numbers—6BV-14301-09, 6BV-14301-10, or 6BV-14301-11—before ordering.

Can I use this carburetor on a Yamaha 2-stroke engine?

No. This product is listed for Yamaha 4-stroke applications and should not be used on a 2-stroke engine unless the applicable manufacturer documentation specifically confirms compatibility.

What symptoms may indicate a carburetor problem?

Common symptoms can include hard starting, unstable idling, poor acceleration, loss of power, fuel leakage, or abnormal exhaust smoke. These symptoms can also result from fuel-system contamination, ignition problems, air leaks, or incorrect adjustments, so diagnose the engine before replacing the carburetor.

Does the package include a mounting gasket?

A mounting gasket is not identified in the package contents. Check the original gasket and obtain the correct replacement gasket or seal separately if required for your installation.

Does this product include the throttle or choke linkage?

No additional linkage or accessory is identified in the package contents. The product is listed as one carburetor; reuse only serviceable original components that are confirmed compatible.

Will adjustment be required after installation?

Adjustment or synchronization may be required after installation. Follow the Yamaha service information for the specific engine and do not change adjustment settings without confirming the correct procedure.

How should I store or maintain the carburetor?

Use clean, fresh fuel, inspect the fuel system for contamination, and follow the engine manufacturer's storage procedure when the outboard will sit unused. If the engine is stored for an extended period, address the fuel system before restarting it.