Carburetor – Fits Yamaha 4HP 5HP F4S F4L 4-Stroke (Replaces 6BV-14301-10, 6BV-14301-11, 6BV-14301-09)

Product Details

This Carburetor – Fits Yamaha 4HP 5HP F4S F4L 4-Stroke is designed for Yamaha 4-stroke outboard engines rated at 4HP and 5HP, specifically the F4S and F4L model series. It delivers reliable fuel metering for smooth engine operation across recreational and light commercial applications.

This carburetor directly replaces OEM part numbers 6BV-14301-10, 6BV-14301-11, and 6BV-14301-09, offering an affordable aftermarket alternative to factory components.

• Drop-in replacement for Yamaha 4HP and 5HP 4-stroke engines
• Compatible with F4S and F4L model designations
• Suitable for gasoline-powered marine applications

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Technical Specs

Part Type

Carburetor

Compatible Brand

Yamaha

Engine Type

4-Stroke

Horsepower Range

4HP – 5HP

Model Fitment

F4S, F4L

OEM Reference

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

What's in the Box

• 1 × Carburetor

Installation Notes

1. Disconnect the fuel line and remove the cowling to access the existing carburetor.
2. Unbolt the carburetor from the intake manifold and disconnect throttle and choke linkages.
3. Remove the old gasket material from the mounting surface and inspect for damage.
4. Position a new gasket on the intake manifold (ensure gasket is included or sourced separately).
5. Align the new carburetor with the mounting studs and hand-tighten fasteners.
6. Torque mounting bolts to manufacturer specification in a cross pattern.
7. Reconnect throttle and choke linkages, ensuring free movement through full range.
8. Reattach the fuel line and check for leaks before starting the engine.
9. Prime the fuel system and start the engine; adjust idle and mixture screws per service manual.
10. Run the engine at various RPM ranges and inspect for smooth operation and proper fuel delivery.

Troubleshooting & FAQ

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

This carburetor is designed for Yamaha F4S and F4L 4-stroke models rated at 4HP and 5HP. Verify your engine's model designation and OEM part number (6BV-14301-10, 6BV-14301-11, or 6BV-14301-09) before ordering.

What are common signs that my carburetor needs replacement?

Symptoms include rough idling, difficulty starting, poor acceleration, black smoke from the exhaust, or fuel leaks around the carburetor body. Internal wear or clogged jets often cause these issues.

Do I need to adjust the carburetor after installation?

Yes, idle speed and fuel mixture screws typically require adjustment after installation. Consult your engine's service manual for baseline settings and fine-tune based on operating conditions.

Is a gasket included with this carburetor?

Check the package contents carefully. If a mounting gasket is not included, source a compatible gasket separately to ensure a proper seal and prevent vacuum leaks.

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

No, this carburetor is specifically designed for Yamaha 4-stroke engines. Do not attempt to install it on 2-stroke models, as fuel delivery and engine architecture differ.

How often should I replace or service the carburetor?

Carburetors typically last several years under normal use. Clean jets and inspect for wear annually, especially if fuel quality is poor or the engine sits unused for long periods.