369-87122-1 Carburetor Repair Kit for Yamaha Mercury Tohatsu Nissan 3A 3AMH 3MSH 6C 6CEM 6N 6J 8C 8CEM 8N 8J M4 M5 M8 M9.8 NS4 NS5 NS8 NS9.8 | JLM Marine

Carburetor Repair Kit – 369-87122-1 for Yamaha, Mercury, Tohatsu & Nissan Outboards

This carburetor repair kit provides comprehensive fitment for multiple marine brands and models, including Yamaha 3A/AMH/MSH, 6C/CEM/N/J, and 8C/CEM/N/J outboards (1984–2002), Mercury 6 HP and 8 HP 2-stroke engines, Tohatsu M4, M5, M8, and M9.8 models, and Nissan NS4, NS5, NS8, and NS9.8 2-stroke outboards. Engineered to restore carburetor function, this kit directly replaces OEM part 369-87122-1 and supersedes multiple factory and aftermarket equivalents.

This aftermarket replacement kit cross-references to Yamaha 6G1-W0093-00-00, Mercury 11502M, Sierra 18-7765, and Mallory Marine 9-37505, ensuring broad compatibility across brands and model years. The kit includes all critical internal carburetor components required for a complete rebuild.

• Complete 10-piece rebuild kit with float, needle valve, gaskets, O-ring, pilot screw, and hardware
• Fits 2-stroke outboards ranging from 3 HP to 9.8 HP across four major brands
• Direct replacement for OEM 369-87122-1 and related service kits

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 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.

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.

Technical Specifications

Package Contents

This carburetor repair kit includes 10 essential components for a complete rebuild:

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

Installation Guide

1. Disconnect the fuel line and remove the carburetor from the engine mounting surface. Clean the exterior of the carburetor thoroughly before disassembly.
2. Remove the float bowl by unscrewing the retaining screws with the included washers. Take note of the pilot screw's original position (count turns before removal).
3. Remove the float pin and lift out the float assembly. Extract the needle valve from the float arm by removing the float arm pin.
4. Remove all old gaskets, O-rings, and sealing surfaces. Clean all carburetor passages with carburetor cleaner and compressed air.
5. Install the new O-ring (6G1-14984-00-00) onto the pilot screw body. Thread the pilot screw into its seat gently until seated, then back out to the original position.
6. Insert the new needle valve (6G1-14546-01-00) into the float arm. Secure the float arm pin (688-14548-00-00) into the float.
7. Install the new float assembly into the carburetor body using the new float pin (676-14186-00-00). Verify free movement and proper height.
8. Position the new gasket (6G1-14126-00-00) onto the carburetor body mating surface. Ensure it is seated properly with no overlap.
9. Attach the float bowl and secure with the four screws with washers (97980-04114-00). Tighten evenly in a cross pattern to avoid warping.
10. Install both caps (6G1-14966-00-00 and 679-14966-00-00) in their respective locations on the carburetor.
11. Reinstall the carburetor onto the engine with a new mounting gasket if required. Reconnect the fuel line and throttle linkage.
12. Prime the fuel system, start the engine, and adjust the pilot screw for smooth idle. Check for fuel leaks around all gasket surfaces.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific engine?
A: Cross-reference your engine model and year with the compatibility table above. Also verify your original carburetor part number matches one of the OEM references listed (369-87122-1, 6G1-W0093-00-00, 11502M, etc.). If your model appears in the table but your carburetor looks different, do not proceed with purchase.

Q: What are the signs that my carburetor needs rebuilding?
A: Common symptoms include rough or inconsistent idle, difficulty starting, fuel leaking from the carburetor bowl, poor acceleration, or the engine flooding. A worn needle valve or damaged float can cause fuel overflow and black smoke.

Q: How often should I rebuild my carburetor?
A: Rebuild intervals depend on usage and fuel quality. For engines used regularly in saltwater or with ethanol-blended fuel, inspect the carburetor annually and rebuild every 2–3 years or when performance issues arise. Engines in storage for extended periods should be rebuilt before returning to service.

Q: Can I reuse any of the old carburetor components?
A: It is not recommended. Gaskets, O-rings, and the needle valve are wear items that lose sealing integrity over time. Reusing old parts can result in fuel leaks, flooding, or poor performance. Always install all new components included in the kit.

Q: Do I need to adjust the float height after installation?
A: Float height is typically pre-set by the float and needle valve design in these carburetors. However, after installation, visually inspect the float for free movement and ensure it is parallel to the carburetor body when inverted. Consult your engine's service manual for specific float height measurements if available.

Q: Is this an OEM or aftermarket part?
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.