Carburetor Repair Kit for Yamaha F9.9/F15 and Mercury 8–15 HP 4-Stroke Outboards – Replaces 66M-W0093-01-00, 802706A1
Carburetor Repair Kit for Yamaha F9.9/F15 and Mercury 8–15 HP 4-Stroke Outboards – Replaces 66M-W0093-01-00, 802706A1 is backordered and will ship as soon as it is back in stock.
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Carburetor Repair Kit for Yamaha F9.9/F15 and Mercury 8–15 HP 4-Str...
Carburetor Repair Kit for Yamaha F9.9/F15 and Mercury 8–15 HP 4-Stroke Outboards – Replaces 66M-W0093-01-00, 802706A1 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket carburetor repair kit is designed for selected Yamaha and Mercury 4-stroke outboard carburetors. It replaces Yamaha 66M-W0093-01-00 and the superseded 66M-W0093-00-00, and is also listed for Mercury 802706A1. The same application is commonly cross-referenced to Sierra 18-7738.
Use the exact engine model, year, and serial-number conditions below when checking compatibility. Horsepower and brand alone are not sufficient to confirm fitment.
- Replacement components for servicing the carburetor and restoring reliable fuel-system operation.
- Includes gaskets, seals, float components, needle valve, adjusting screw, screws, and related service parts listed below.
- For gasoline-fueled 4-stroke marine outboards using the specified carburetor application.
- Aftermarket replacement; not manufactured by Yamaha, Mercury Marine, or Sierra.
Part Number Matrix
These are manufacturer and aftermarket reference numbers associated with this carburetor repair-kit application.
| Brand | Reference | Use |
|---|---|---|
| Yamaha | 66M-W0093-01-00 | Primary Yamaha reference |
| Yamaha | 66M-W0093-00-00 | Superseded Yamaha reference |
| Mercury Marine | 802706A1 | Mercury carburetor repair-kit reference |
| Sierra | 18-7738 | Aftermarket cross-reference |
Engine & Model Compatibility
The fitment records below keep the model, year, horsepower, stroke, and serial-number conditions together. Always compare the original carburetor reference and the engine identification label before ordering.
| Brand | Model examples | Rated HP | Stroke | Year or serial condition | Reference |
|---|---|---|---|---|---|
| Yamaha | F15ELHW, F15ESHW, F15MLHW, F15MSHW | 15 | 4-Stroke | 1998 | 66M-W0093-00-00 |
| Yamaha | F15ELHX, F15ESHX, F15MLHX, F15MSHX | 15 | 4-Stroke | 1999 | 66M-W0093-00-00 |
| Yamaha | F15ELHY, F15ESHY, F15MLHY, F15MSHY | 15 | 4-Stroke | 2000 | 66M-W0093-00-00 |
| Yamaha | F15ELHZ, F15ESHZ, F15MLHZ, F15MSHZ, F15PLHZ, F15PLRZ | 15 | 4-Stroke | 2001 | 66M-W0093-00-00 |
| Yamaha | F15ELHA, F15ESHA, F15MLHA, F15MSHA, F15PLHA, F15PLRA | 15 | 4-Stroke | 2002 | 66M-W0093-01-00 |
| Yamaha | F15ELHB, F15ESHB, F15MLHB, F15MSHB, F15PLHB, F15PLRB | 15 | 4-Stroke | 2003 | 66M-W0093-01-00 |
| Yamaha | F15ELHC, F15ESHC, F15MLHC, F15MSHC, F15PLHC, F15PLRC | 15 | 4-Stroke | 2004 | 66M-W0093-01-00 |
| Yamaha | F15ELHD, F15ESHD | 15 | 4-Stroke | 2005 | 66M-W0093-01-00 |
| Yamaha | F9.9 and T9.9 applications listed for reference 18-7738 | 9.9 | 4-Stroke | Application-specific; verify model and year | 18-7738 |
| Brand | Engine application | Rated HP | Stroke | Serial-number condition | Reference |
|---|---|---|---|---|---|
| Mercury | 8 4-Stroke, Bodensee International | 8 | 4-Stroke | 0P086824 through 0P400999 | 802706A1 |
| Mercury | 9.9 4-Stroke, 323 cc | 9.9 | 4-Stroke | 0G760300 through 1B226999 | 802706A1 |
| Mercury | 9.9 4-Stroke, 323 cc | 9.9 | 4-Stroke | 0P075166 through 0P400999 | 802706A1 |
| Mercury | 15 4-Stroke | 15 | 4-Stroke | 9973100 through 0P016999 | 802706A1 |
| Mercury | 15 4-Stroke | 15 | 4-Stroke | 0G590000 through 0G760299 | 802706A1 |
| Mercury | 15 4-Stroke | 15 | 4-Stroke | 0G760300 through 1B226999 | 802706A1 |
| Mercury | 15 4-Stroke | 15 | 4-Stroke | 1B227000 through 1B727495 | 802706A1 |
| Mercury | 15 4-Stroke | 15 | 4-Stroke | 0P401000 and later | 802706A1 |
Models and serial ranges are application-specific. If your engine identification or carburetor reference does not match, do not assume compatibility from horsepower alone.
Technical Specifications
- Product type
- Aftermarket carburetor repair kit
- Application
- Selected Yamaha and Mercury gasoline outboard carburetors
- Stroke
- 4-stroke applications listed above
- Reference numbers
- Yamaha 66M-W0093-01-00 and 66M-W0093-00-00; Mercury 802706A1; Sierra 18-7738
- Installation
- Carburetor disassembly and reassembly required
- Fuel system
- Gasoline marine applications
What's in the Box
- 1 x Gasket, 66M-14398-00-00
- 1 x Gasket, 6L2-14398-00-00
- 1 x Stopper, 66M-14377-00-00
- 1 x Float-chamber gasket, 66M-14384-00-00
- 1 x Float, 6L2-14385-00-00
- 1 x Float pin, 6E5-14386-01-00
- 1 x Needle valve, 6L2-14392-00-00
- 1 x Gasket, 62Y-14399-00-00
- 1 x Air-adjusting screw, 5H0-14323-00-00
- 4 x Screws with washers, 97980-04112-00
- 1 x O-ring, 62Y-14397-00-00
- 1 x O-ring, 6F5-14397-00-00
- 1 x O-ring, 5H0-14397-00-00
- 1 x Filter, 66M-14827-00-00
Component shapes and quantities should be compared with the parts removed from the specific carburetor before installation.
Installation Notes
- Shut off the fuel supply, disconnect the battery if required by the service procedure, and disconnect the fuel line.
- Remove the carburetor while recording the locations of linkages, hoses, and brackets.
- Disassemble the carburetor on a clean workbench and keep small parts organized.
- Remove the old gaskets, float, needle valve, O-rings, filter, and other replaceable components.
- Clean the carburetor body, passages, and jets with a suitable carburetor cleaner. Do not force wire through calibrated passages.
- Compare each replacement component with the removed part before fitting it.
- Install the new components in the reverse order of removal and use the manufacturer's service procedure for tightening specifications.
- Set the float to the specification for the exact engine and carburetor model.
- Reinstall the carburetor, reconnect the fuel line and linkages, and check that the throttle operates freely.
- Restore the fuel supply, inspect carefully for leaks, and test the engine in accordance with the service manual.
Troubleshooting & FAQ
How do I confirm fitment?
Match the original carburetor reference first, then confirm the engine brand, model, horsepower, stroke, year, and serial-number range. The 66M-W0093 references and Mercury 802706A1 applications are not universal across every 4-stroke outboard.
What symptoms may indicate a carburetor rebuild is needed?
Hard starting, rough idle, stalling, poor acceleration, fuel leakage, flooding, or abnormal exhaust smoke may indicate contamination or worn carburetor components. Diagnose the fuel system before replacing parts.
Does the float need to be adjusted?
Yes. Correct float setting is important for fuel level and mixture control. Use the service specification for the exact engine rather than a generic measurement.
Can old gaskets or O-rings be reused?
Reuse is not recommended. Gaskets and O-rings can be compressed, brittle, damaged during removal, or unable to seal after disassembly.
Why are several gaskets and O-rings included?
Different carburetor passages and configurations use different seals. Match each new component to the original location and the service-manual diagram for your engine.
Is this an OEM part?
No. This is an aftermarket replacement kit. The listed Yamaha, Mercury Marine, and Sierra numbers are manufacturer or aftermarket reference numbers used for application identification.
Should installation be performed by a professional?
Carburetor servicing involves gasoline and small calibrated components. Professional installation is recommended, especially when float adjustment, linkage synchronization, or leak diagnosis is required.
Safety & Important Information
- Work in a well-ventilated area away from flames, sparks, and ignition sources.
- Relieve fuel pressure where applicable and prevent fuel from contacting hot engine surfaces.
- Verify the original part number, engine model, year, and serial number before ordering.
- Do not install the kit if the supplied components do not match the carburetor being serviced.
- Follow the engine manufacturer's service instructions for float height, adjustments, tightening, and testing.
About Sea Sierra
- Marine replacement parts selected for practical service and repair applications.
- Application-focused product information to help match parts before installation.
- Aftermarket value for routine marine maintenance and carburetor service.
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