Carburetor Rebuild Kit – Fits Mercury Mariner, Yamaha, Tohatsu 3HP-8HP (Replaces 369-87122-1)

Carburetor Rebuild Kit – Fits Mercury Mariner, Yamaha, Tohatsu 3HP-8HP (Replaces 369-87122-1)

This carburetor rebuild kit contains the necessary components to restore performance to your outboard engine. It is designed for a wide range of Mercury, Mariner, Yamaha, and Tohatsu/Nissan 2-stroke models, specifically those equipped with WMC-series and KB-series carburetors.

This kit directly replaces multiple OEM part numbers, including Mercury 11502M, Yamaha 6G1-W0093-00 / 6G1-W0093-01-00, Tohatsu 369-87122-1 / 369-871221 / 3590-87122-1, and Sierra 18-7765.

• Fits a broad range of 3 HP to 8 HP 2-Stroke outboards.
• Engineered for direct replacement of OEM components for straightforward installation.
• Compatible with standard gasoline (petrol) fuel types.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Screw, Pilot (679-14923-00-00)
• 1 x Cap (6G1-14966-00-00)
• 1 x Gasket (6G1-14126-00-00)
• 1 x Cap (679-14966-00-00)
• 1 x O-Ring (6G1-14984-00-00)
• 4 x Screw, With Washer (97980-04114-00)
• 1 x Float (6G1-14985-00-00)
• 1 x Valve, Needle (6G1-14546-01-00)
• 1 x Pin, Float (676-14186-00-00)
• 1 x Pin, Float Arm (688-14548-00-00)

Installation Guide

1. Disconnect the fuel line and carefully remove the carburetor assembly from the engine.
2. Disassemble the carburetor on a clean workbench, paying close attention to the order and orientation of each component.
3. Thoroughly clean all metal parts using a quality carburetor cleaner spray. Ensure all jets and passages are clear of debris.
4. Systematically replace the old gaskets, O-rings, seals, needle valve, and float with the new components from this kit.
5. Carefully reassemble the carburetor. Ensure the float height is set to meet manufacturer specifications if applicable.
6. Mount the reassembled carburetor onto the engine and securely reconnect the fuel line and any control linkages.
7. Start the engine and allow it to warm up. Adjust the idle and air/fuel mixture screws as needed to achieve a smooth and stable idle.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific engine model?

A: This kit is designed for a variety of Mercury, Mariner, Yamaha, and Tohatsu/Nissan outboards from 3HP to 8HP. Please use the "Compatible Engine Models" tables on this page to check your model and year. It is crucial to also verify your carburetor series (e.g., WMC-series) and cross-reference the OEM part numbers listed.

Q: What are common signs that my carburetor needs a rebuild?

A: Symptoms include difficulty starting, rough or inconsistent idling, stalling at low speeds, poor acceleration, black smoke from the exhaust, or visible fuel leaks around the carburetor body. A rebuild with this kit replaces common wear items and can resolve these issues.

Q: How often should I rebuild my carburetor?

A: There is no fixed interval, but it's good practice to consider a rebuild if the engine has been sitting for a long period (e.g., over a year), if you are experiencing performance issues, or as part of a comprehensive 5-year service. Fuel quality and usage patterns can affect component lifespan.

Q: OEM vs. Aftermarket?

A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?

A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.