Carburetor Assembly – Fits Yamaha 2-Stroke 9.9HP & 15HP Outboard Motors (Replaces 6B4-14301-00)
Carburetor Assembly – Fits Yamaha 2-Stroke 9.9HP & 15HP Outboard Motors (Replaces 6B4-14301-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Carburetor Assembly – Fits Yamaha 2-Stroke 9.9HP & 15HP Outboar...
Carburetor Assembly – Fits Yamaha 2-Stroke 9.9HP & 15HP Outboard Motors (Replaces 6B4-14301-00) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Carburetor Assembly – Fits Yamaha 2-Stroke 9.9HP & 15HP Outboard Motors (Replaces 6B4-14301-00) and is designed for Yamaha 6B4 series engines from 1996–2006 and later. It also offers compatibility with select 9.9HP and 15HP 2-stroke outboard engines from Parsun and Earrow that follow the Yamaha 6B4 design.
It serves as a direct interchange for Yamaha part numbers 6B4-14301-00, 6B4-14301-01, 6B41430100, and 6B41430101.
- Designed for 2-stroke gasoline outboard engines.
- Features an engine-mounted, external installation design.
- Constructed from durable aluminum alloy for longevity in marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6B4-14301-00 |
| Yamaha | 6B4-14301-01 |
| Yamaha | 6B41430100 |
| Yamaha | 6B41430101 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This carburetor fits a range of Yamaha 9.9HP and 15HP 2-stroke models, primarily from 2004 to 2006 and newer.
Also compatible with certain Parsun and Earrow 2-stroke engines designed to mirror Yamaha's 6B4 series specifications.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yamaha | 15MSHC | 15 | 2-Stroke | 2004 | 6B4-14301-00 |
| Yamaha | 9.9MSHC | 9.9 | 2-Stroke | 2004 | 6B4-14301-00 |
| Yamaha | 15FMHS | 15 | 2-Stroke | 2005 | 6B4-14301-00 |
| Yamaha | 15MSHD | 15 | 2-Stroke | 2005 | 6B4-14301-00 |
| Yamaha | 9.9FMHS | 9.9 | 2-Stroke | 2005 | 6B4-14301-00 |
| Yamaha | 9.9MSHD | 9.9 | 2-Stroke | 2005 | 6B4-14301-00 |
| Yamaha | 15MSH | 15 | 2-Stroke | 2006– | 6B4-14301-00 |
| Yamaha | 9.9MSH | 9.9 | 2-Stroke | 2006– | 6B4-14301-00 |
Technical Specs
- Product Type
- Carburetor Assembly
- Installation
- External, Engine-Mounted
- Fuel Type
- Gasoline
- Engine Type
- 2-Stroke
- Engine Position
- Outboard
- Housing Material
- Metal (Aluminum Alloy)
- Housing Color
- Silver/Metallic
- Dimensions
- 8 × 9 × 14 cm
- Weight
- 0.78 kg (1.72 lbs)
- Origin
- Mainland China (Aftermarket)
What’s in the Box
- 1 x Carburetor Assembly (Replaces 6B4-14301-00/6B4-14301-01)
Installation Notes
- Ensure the engine is off and cool. Shut off the fuel supply and safely disconnect the fuel line from the carburetor.
- Disconnect the throttle linkage cable and any choke linkages or electrical wires attached to the old carburetor.
- Carefully unbolt and remove the old carburetor from the intake manifold. Note the position of any gaskets.
- Clean the intake manifold mounting surface to ensure a proper seal. Place a new gasket (not included) onto the manifold.
- Mount the new carburetor onto the intake studs and tighten the nuts or bolts evenly to the manufacturer's recommended torque.
- Reconnect the throttle and choke linkages, ensuring they move freely without binding. Reattach any electrical wires.
- Securely connect the fuel line. Turn the fuel supply on and prime the system if necessary.
- Check thoroughly for any fuel leaks before attempting to start the engine.
- Start the engine and allow it to warm up. Adjust the idle speed screw as needed for a smooth, stable idle.
Troubleshooting & FAQ
Will this fit my 2007 Yamaha 15HP motor?
Yes, this carburetor is listed as compatible with Yamaha 15MSH models from 2006 and later. We always recommend verifying the part number on your original carburetor to ensure an exact match.
Does this carburetor include a new mounting gasket?
The package contains the carburetor assembly only. A new mounting gasket is not confirmed to be included and should be sourced separately before installation to ensure a leak-free seal.
How can I tell if my old carburetor needs replacing?
Common signs of a failing carburetor include difficulty starting the engine, rough or unstable idling, frequent stalling, poor acceleration, increased fuel consumption, or black smoke from the exhaust. Visible fuel leaks are also a clear indicator that a replacement is needed.
Are the internal jets pre-set?
Yes, this carburetor is built to match OEM factory specifications. The internal jets are pre-set for the intended engine models. Minor adjustments to the external idle speed screw may be needed after installation to achieve optimal performance.
What is the difference between an OEM and an aftermarket part?
This listing is for an aftermarket replacement, not an original equipment manufacturer (OEM) part. It is built to OEM-level specifications with comparable materials in an ISO 9002 certified facility and is batch-inspected for quality and consistency.
What are the shipping speed and cost?
We ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free to most locations, with expedited options available at checkout where applicable.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or quality control.
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