66M-W0093-01-00 Carburetor Repair Kit for Yamaha Mercury F9.9 T9.9 F15 | JLM Marine

Carburetor Repair Kit – Fits Yamaha & Mercury 4-Stroke 9.9–15 HP Outboards

This carburetor repair kit is designed for Yamaha and Mercury/Mariner 4-stroke outboard engines from 9.9 HP to 15 HP. It provides a comprehensive solution for rebuilding carburetors on F9.9, T9.9, and F15 Yamaha models (2000–2007), as well as Mercury/Mariner 9.9, 13.5, and 15 HP engines (1998–2006).

This kit directly replaces OEM part numbers 66M-W0093-01-00, 802706A1, and aftermarket number 18-7738, ensuring broad compatibility across both Yamaha and Mercury platforms.

• Complete rebuild kit with all essential gaskets, seals, and hardware
• Designed for 4-stroke carburetors on mid-range outboards
• Restores carburetor performance and fuel efficiency

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 all necessary components for a complete rebuild:

• Complete gasket set
• O-rings and seals
• Float valve (needle and seat)
• Jets and associated hardware
• All essential rebuild components as per OEM specifications

Installation Guide

1. Disconnect the fuel line and remove the carburetor from the engine. Clean the exterior thoroughly before disassembly.
2. Carefully disassemble the carburetor, taking note of the position and orientation of all components. Photograph the assembly if needed for reference.
3. Remove old gaskets, O-rings, and seals completely. Clean all metal surfaces with carburetor cleaner and compressed air.
4. Inspect carburetor body and float bowl for corrosion, cracks, or damage. Replace the carburetor if severe damage is found.
5. Install the new needle valve and seat from the kit, ensuring proper seating. Do not overtighten.
6. Replace all jets with new ones from the kit, matching sizes to original specifications. Clean jet passages thoroughly.
7. Install new gaskets and O-rings in their proper locations. Apply a light coating of oil to rubber seals to aid installation.
8. Reassemble the carburetor in reverse order, ensuring the float height is set to manufacturer specifications. Check float movement for binding.
9. Reinstall the carburetor onto the engine with new mounting gaskets. Torque fasteners to specification.
10. Reconnect the fuel line and prime the system. Check for fuel leaks at all connections and gasket surfaces.
11. Start the engine and allow it to warm up. Adjust idle speed and mixture settings per factory recommendations.
12. Test the engine under load and verify smooth acceleration and stable idle. Re-check for leaks after initial operation.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific engine?
A: Cross-reference your engine's model and year with the compatibility table above. Also verify that your original carburetor part number matches one of the OEM numbers listed (66M-W0093-01-00 or 802706A1). If your engine falls within the specified years and horsepower range, this kit should fit.

Q: What are the signs that my carburetor needs rebuilding?
A: Common symptoms include rough or unstable idle, difficulty starting, fuel leaks around the carburetor, poor acceleration, or black smoke from the exhaust. If your engine has been sitting for an extended period, old fuel can gum up internal passages and damage seals.

Q: How often should I rebuild my carburetor?
A: Rebuild intervals depend on usage and fuel quality. For regularly used engines with fresh fuel, rebuilding every 3–5 years is typical. Engines that sit for long periods or use ethanol-blend fuel may require more frequent service. Always rebuild if you notice performance issues or fuel leaks.

Q: Do I need any special tools to install this kit?
A: Basic hand tools (screwdrivers, wrenches, pliers) are usually sufficient. A carburetor cleaning solution, compressed air, and a clean workspace are recommended. Some models may require setting float height with a caliper or depth gauge per factory specifications.

Q: Will this kit restore my carburetor to like-new performance?
A: If the carburetor body and internal metal components are in good condition, this rebuild kit will restore proper sealing and fuel metering. However, if the carburetor housing is corroded, warped, or has damaged threads, a complete carburetor replacement may be necessary.

Q: What's the difference between OEM and aftermarket carburetor kits?
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.