Yamaha Outboard Carburetor Assembly for 9.9HP and 15HP 2-Stroke 15D / E15DMH-S Engines – Replaces 6B4-14301-00
Yamaha Outboard Carburetor Assembly for 9.9HP and 15HP 2-Stroke 15D / E15DMH-S Engines – Replaces 6B4-14301-00 is backordered and will ship as soon as it is back in stock.
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Yamaha Outboard Carburetor Assembly for 9.9HP and 15HP 2-Stroke 15D...
Yamaha Outboard Carburetor Assembly for 9.9HP and 15HP 2-Stroke 15D / E15DMH-S Engines – Replaces 6B4-14301-00 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket carburetor assembly is intended for selected Yamaha outboard applications using 9.9HP and 15HP engines, including Yamaha 15D and E15DMH-S models. It is a direct replacement-style carburetor for applications associated with Yamaha reference number 6B4-14301-00.
The product is supplied as a single carburetor assembly, not as a multi-part kit. Confirm the model designation and reference number on your original carburetor before ordering.
- Carburetor assembly for selected Yamaha outboard engines.
- Applicable to listed 9.9HP and 15HP 15D / E15DMH-S applications.
- Designed for gasoline-powered outboard engine fuel-system service.
- Aftermarket replacement component; not an original Yamaha-branded part.
Part Number Matrix
The following Yamaha reference numbers are associated with this carburetor in the product records. Number formatting may vary by catalog.
| Brand | Reference Number |
|---|---|
| Yamaha | 6B4-14301-00 |
| Yamaha | 6B41430100 |
| Yamaha | 6B4-14301-00-00 |
| Yamaha | 6B4-14301-40 |
| Yamaha | 6B3-14301-20 |
Engine and Model Compatibility
Use the following application information as a starting point, then verify your exact engine model and the number on the original carburetor. Model, horsepower, stroke configuration and other engine details must match before installation.
| Brand | Model / Application | Rated HP | Engine Type | Reference Number |
|---|---|---|---|---|
| Yamaha | 15D | 15HP | 2-Stroke outboard | 6B4-14301-00 |
| Yamaha | E15DMH-S | 15HP | 2-Stroke outboard | 6B4-14301-00 |
| Yamaha | Selected 9.9HP applications | 9.9HP | 2-Stroke outboard | 6B4-14301-00 |
| Yamaha | Selected 15HP applications | 15HP | 2-Stroke outboard | 6B4-14301-00 |
Important: The available product information does not establish universal compatibility with every Yamaha 9.9HP or 15HP engine, every production year, or every starter and shaft configuration. Do not rely on horsepower alone.
Technical Specifications
- Product Type
- Carburetor assembly
- Application
- Selected Yamaha outboard engines
- Rated Engine Applications
- 9.9HP and 15HP
- Engine Configuration
- 2-Stroke outboard applications
- Fuel
- Gasoline
- Product Format
- Single replacement assembly
- Reference Number
- 6B4-14301-00 and additional numbers listed above
- Brand Status
- Aftermarket replacement; not an original Yamaha part
What's in the Box
- 1 x Carburetor assembly
Mounting gaskets, hardware, fuel lines and other installation parts are not confirmed as included. Obtain any required sealing components separately before installation.
Installation Notes
- Turn the engine off, allow it to cool, shut off the fuel supply and work in a well-ventilated area away from ignition sources.
- Disconnect the fuel line and note the routing of the throttle, choke and any other linkages before removing the original carburetor.
- Disconnect the throttle linkage, choke linkage and any connected wires or hoses as applicable to the engine.
- Remove the original carburetor carefully and retain the correct mounting hardware. Inspect the existing gasket and replace it if necessary.
- Clean the intake mounting surface. Install a suitable new gasket if required; a replacement gasket is not confirmed to be included.
- Position the replacement carburetor and tighten the fasteners evenly according to the engine manufacturer's service specifications.
- Reconnect the fuel line, throttle linkage, choke linkage and any other connections. Confirm that all controls move freely without binding.
- Restore the fuel supply and inspect all connections for leaks before starting the engine.
- Start the engine in a safe test area and verify stable operation. Carburetor adjustment or synchronization may be required after installation according to the engine service procedure.
Troubleshooting and FAQ
Which Yamaha engines is this carburetor intended for?
The company fitment record lists Yamaha 9.9HP and 15HP applications, including 15D and E15DMH-S models. Verify the exact engine model and original carburetor reference number because not every engine in the same horsepower class uses the same carburetor.
Does this fit every Yamaha 9.9HP or 15HP outboard?
No universal fitment should be assumed. Horsepower alone is not sufficient for identification. Compare the engine model, configuration and original carburetor reference number with the information above before ordering.
Is this an OEM Yamaha carburetor?
No. This listing is for an aftermarket replacement carburetor assembly. Yamaha reference numbers are provided for application and comparison purposes.
Is a mounting gasket included?
A mounting gasket is not confirmed as included. Plan to inspect the original gasket and source a suitable replacement separately if necessary.
What symptoms may indicate a carburetor problem?
Hard starting, unstable idle, stalling, poor acceleration, fuel leakage and abnormal fuel consumption can be associated with a faulty or contaminated carburetor. Check the fuel system, ignition system and engine condition before replacing parts.
Will adjustment be required after installation?
Adjustment or synchronization may be required after installation. Follow the service procedure for the specific engine and do not operate the engine if fuel leaks or control linkages bind.
Safety and Important Information
- Verify the engine model and original carburetor reference number before purchase.
- Do not install a component that differs in mounting arrangement, linkage location or fuel connections from the original part.
- Handle gasoline and fuel-system components only in a well-ventilated area and keep them away from sparks, flames and hot surfaces.
- Professional installation is recommended if you are not familiar with outboard fuel-system service.
- This is an aftermarket replacement component and is not manufactured or branded by Yamaha.
About Sea Sierra
Sea Sierra supplies replacement marine components for maintenance and repair applications. Please use the compatibility information and reference-number checks above to select the correct part for your engine.
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