Carburetor Repair Seal Kit for Yamaha F25, T25, F30, F40 and F40B; Mercury/Mariner 4-Stroke Outboards
Carburetor Repair Seal Kit for Yamaha F25, T25, F30, F40 and F40B; Mercury/Mariner 4-Stroke Outboards is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Carburetor Repair Seal Kit for Yamaha F25, T25, F30, F40 and F40B; ...
Carburetor Repair Seal Kit for Yamaha F25, T25, F30, F40 and F40B; Mercury/Mariner 4-Stroke Outboards is backordered and will ship as soon as it is back in stock.
Product Details
This carburetor repair seal kit is designed for selected Yamaha, Mercury and Mariner 4-stroke outboards. It is intended to help restore proper carburetor sealing and fuel-system operation when original gaskets, seals or related service components have become worn or damaged.
The company fitment records identify this kit for Yamaha Marine F25 and T25 models from 2004–2006, F30 models from 2000 onward, and F40/F40B models from 2000 onward. The records also identify Mercury/Mariner 4-stroke applications including 25 HP, 30 HP carbureted 3-cylinder, 40 HP carbureted 3- and 4-cylinder, and 50 HP and 60 HP 4-cylinder outboards.
- Carburetor repair seal kit for selected marine outboard applications.
- Aftermarket replacement for the listed OEM reference numbers.
- Fitment depends on the exact engine model, configuration and serial-number range.
OEM Reference Numbers
Use the reference numbers below together with your engine model and carburetor configuration when checking compatibility. These numbers are reference identifiers only; they do not mean that every engine using one brand's part number is automatically compatible with every other application.
| Brand | OEM Reference |
|---|---|
| Yamaha | 65W-W0093-02 |
| Yamaha | 65W-W0093-01 |
| Yamaha | 67C-W0093-00 |
| Mercury / Mariner | 8542561 |
Engine & Model Compatibility
Confirm the full model designation, stroke type, carburetor configuration and serial-number range against your service manual before ordering. The following applications are the fitment descriptions provided for this product.
| Brand | Model or Application | Rated HP | Stroke | Years or Range | OEM Reference |
|---|---|---|---|---|---|
| Yamaha | F25 | 25 | 4-Stroke | 2004–2006 | 65W-W0093-02, 65W-W0093-01, 67C-W0093-00 |
| Yamaha | T25 | 25 | 4-Stroke | 2004–2006 | 65W-W0093-02, 65W-W0093-01, 67C-W0093-00 |
| Yamaha | F30 | 30 | 4-Stroke | 2000 onward | 65W-W0093-02, 65W-W0093-01, 67C-W0093-00 |
| Yamaha | F40 / F40B | 40 | 4-Stroke | 2000 onward | 65W-W0093-02, 65W-W0093-01, 67C-W0093-00 |
| Brand | Application | Rated HP | Stroke | Configuration | OEM Reference |
|---|---|---|---|---|---|
| Mercury / Mariner | 4-stroke outboards | 25 | 4-Stroke | Application-specific; confirm model and serial range | 8542561 |
| Mercury / Mariner | 30 HP carbureted | 30 | 4-Stroke | 3-cylinder carbureted models | 8542561 |
| Mercury / Mariner | 40 HP carbureted | 40 | 4-Stroke | 3- or 4-cylinder carbureted models | 8542561 |
| Mercury / Mariner | 4-cylinder outboards | 50–60 | 4-Stroke | Confirm the exact carburetor application before ordering | 8542561 |
Technical Specifications
- Product Type
- Carburetor repair seal kit
- Application
- Selected Yamaha, Mercury and Mariner 4-stroke outboard carburetors
- Replacement Type
- Aftermarket replacement
- Installation
- Service installation; exact procedure depends on the engine and carburetor model
- Fuel System
- Gasoline carburetor service application
Package Contents
The company catalog identifies this product as a carburetor repair seal kit but does not provide a verified component-by-component package list or quantities. Do not assume that the kit includes a complete carburetor, every internal carburetor component, or parts for multiple carburetors. Compare the supplied parts with the original components before installation.
Installation Notes
- Use the engine service manual to confirm the model, stroke type, carburetor configuration and serial-number range.
- Disconnect the battery and shut off or disconnect the fuel supply before beginning service.
- Remove the airbox or silencer and carburetor only as directed by the service manual.
- Record the positions of fuel lines, linkages, hoses and adjustment components before disassembly.
- Disassemble the carburetor on a clean workbench and retain the original parts until the replacement parts have been matched.
- Clean the carburetor body, jets and passages with an appropriate carburetor cleaner. Do not damage precision openings or sealing surfaces.
- Install the new seals and gaskets in the correct locations. Do not reuse damaged or hardened sealing components.
- Reassemble the carburetor and reinstall it with the correct tightening procedure from the service manual.
- Set float height, idle speed and any mixture adjustments only to the specifications for the exact engine model.
- Prime the fuel system, inspect for leaks and test the engine in a safe, well-ventilated area.
Troubleshooting & FAQ
How do I confirm this kit fits my engine?
Match your engine's brand, exact model, horsepower, 4-stroke designation, carburetor configuration and serial-number range with the fitment information above and your service manual. Also compare the carburetor's existing reference number with the listed OEM references.
Which Yamaha engines are listed for this kit?
The company fitment records list Yamaha F25 and T25 models for 2004–2006, F30 models from 2000 onward, and F40/F40B models from 2000 onward.
Which Mercury and Mariner engines are listed?
The company fitment records list selected 4-stroke 25 HP engines, 30 HP carbureted 3-cylinder engines, 40 HP carbureted 3- and 4-cylinder engines, and 50 HP and 60 HP 4-cylinder engines. Exact model and serial-number verification is still required.
Does one kit service every carburetor on a multi-carburetor engine?
The company catalog does not specify the number of carburetors or a component quantity for this product. Check your engine's service manual and compare the required parts before ordering; additional kits may be required for multiple carburetors.
What symptoms may indicate worn carburetor seals?
Possible symptoms include hard starting, unstable idling, stalling, fuel leakage or poor acceleration. These symptoms can also result from clogged passages, incorrect adjustment, ignition faults or fuel-system problems, so diagnose the engine before replacing parts.
Is this an OEM part?
No. This is an aftermarket replacement seal kit intended for the applications and OEM reference numbers listed on this page. Yamaha, Mercury and Mariner are mentioned only to identify compatibility and reference numbers; this product is not manufactured by those companies.
Safety & Important Information
- Verify the exact engine model, year or serial range, stroke type and carburetor configuration before ordering.
- Compare the original parts and sealing surfaces with the replacement parts before installation.
- Fuel-system service should be performed away from flames, sparks and other ignition sources.
- Follow the engine manufacturer's service procedures for disassembly, adjustment, leak checks and testing.
- Do not rely on horsepower alone to confirm compatibility.
About Sea Sierra
- Marine Replacement Parts — We provide aftermarket components for repair and maintenance of marine engines.
- Application-Focused Listings — Product pages include available model, configuration and reference-number information to support compatibility checks.
- Customer Support — If your model or carburetor reference is not shown, contact support with the complete engine identification and original part information before ordering.
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