Carburetor Repair Kit – Fits Yamaha 40HP 2-Stroke (Replaces 6E9-W0093-03-00)
Carburetor Repair Kit – Fits Yamaha 40HP 2-Stroke (Replaces 6E9-W0093-03-00) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Carburetor Repair Kit – Fits Yamaha 40HP 2-Stroke (Replaces 6E9-W0093-03-00) provides all necessary components to rebuild the carburetors on compatible Yamaha engines. It is designed for Yamaha C40 models from 1995–1998 and 40QEZ/QWC models from 1997–1998, specifically twin-carburetor setups.
This kit serves as a direct replacement for Yamaha part numbers 6E9-W0093-03-00 and 6E9-W0093-03, as well as aftermarket equivalents Sierra 18-7741 and Mallory 9-37513.
- Installation is a manual process requiring careful disassembly and reassembly of the carburetor.
- Engineered for use with gasoline-fueled 2-stroke marine engines.
- Includes all essential gaskets, floats, valves, and o-rings for a complete twin carburetor overhaul.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6E9-W0093-03-00 |
| Yamaha | 6E9-W0093-03 |
| Sierra | 18-7741 |
| Mallory | 9-37513 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha owners, this kit is specifically for the 2-cylinder, 40 HP models listed that use a twin carburetor configuration.
For Mercury/Mariner owners, this kit cross-references to part numbers 97667M/97667T used on certain 40 HP twin-carburetor models. Please verify your specific engine's part requirements before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | C40 | 40 | 2-Stroke | 1995–1998 | 6E9-W0093-03-00 | Twin carburetor models |
| Yamaha | 40QEZ | 40 | 2-Stroke | 1997–1998 | 6E9-W0093-03-00 | Twin carburetor models |
| Yamaha | 40QWC | 40 | 2-Stroke | 1997–1998 | 6E9-W0093-03-00 | Twin carburetor models |
| Mercury/Mariner | Various 40HP models | 40 | 2-Stroke | 97667M/97667T | Twin carburetor models only |
Technical Specs
- Product Type
- Carburetor Repair Kit
- Installation
- Manual installation
- Fuel Type
- Gasoline
- Dimensions
- 4.6" L x 9.0" W x 0.75" H
- Thread Size
- Various (includes multiple screws)
- Warranty
- Manufacturer dependent (typically 1 year)
- Other Technical Attributes
- Includes all gaskets, o-rings, valve seats, float valves required for complete carburetor rebuild
What’s in the Box
- 1 x Gasket (6E9-14198-A0-00)
- 2 x Screw with Washer (97980-04114-00)
- 2 x Valve Seat (688-14590-01-00)
- 2 x Float Valve (676-14984-00-00)
- 2 x O-Ring (688-14548-00-00)
- 2 x Pin, Arm (676-14186-00-00)
- 2 x Pin, Valve (663-14159-00-00)
- 2 x Clip (676-14985-01-00)
- 2 x Float Comp (679-14923-00-00)
- 2 x Screw (93210-04228-00)
- 2 x O-Ring (93210-04230-00)
- 2 x O-Ring (663-14126-00-00)
Installation Notes
- Disconnect the battery and fuel lines, ensuring the work area is well-ventilated.
- Remove the engine cowling and air silencer box to access the carburetors.
- Carefully detach throttle linkages, fuel hoses, and any other connections from the carburetors.
- Unbolt and remove the carburetors from the intake manifold. Note the sequence for reassembly.
- Disassemble one carburetor at a time on a clean workbench, keeping parts organized.
- Remove the float bowl, float, pin, and needle valve assembly.
- Replace old gaskets, o-rings, and seals with the new components from the kit.
- Install the new needle valve, seat, float, and pin, checking the float height against manufacturer specs.
- Clean all jets and passages with carburetor cleaner before reassembling the float bowl.
- Repeat the process for the second carburetor.
- Reinstall the carburetors onto the engine, reattaching all linkages and hoses.
- Turn on the fuel, check for leaks, and start the engine to test and adjust idle settings as needed.
Troubleshooting & FAQ
Does this kit service one or both carburetors on twin-carb models?
Yes, this kit is designed to service both carburetors in the compatible twin-carburetor Yamaha and Mercury/Mariner models. It includes paired components where necessary.
Is this kit compatible with all Yamaha 40HP engines?
No. This kit is specifically for the 2-stroke C40 (1995–1998) and 40QEZ/QWC (1997–1998) models. Always verify your engine's model and year before purchasing.
What are common signs that a carburetor rebuild is needed?
Symptoms include hard starting, rough idling, stalling, poor acceleration, fuel leaks, or a noticeable decrease in fuel efficiency. These issues often point to clogged passages or degraded seals inside the carburetor.
Is this a complete kit for a full rebuild?
This kit includes all the standard soft parts (gaskets, o-rings, seals) and wear items (float valves, seats) needed for a thorough rebuild of both carburetors. It does not include hard parts like jets or the carburetor body itself.
What is the recommended maintenance interval for a carburetor?
Intervals vary by usage and fuel quality. It's good practice to inspect carburetors annually. A full rebuild may be needed every 3-5 years or sooner if the engine is stored for long periods, especially with ethanol-blended fuel.
Which Mercury/Mariner models does this kit fit?
This kit cross-references to parts used in some 40 HP twin-carburetor Mercury/Mariner models. However, exact model and year-range compatibility can vary. We strongly recommend cross-referencing your engine's specific OEM part number to 97667M or 97667T to ensure a perfect match.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs 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 QC.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
