346-87122-0 Carburetor Repair Kit for Yamaha Tohatsu Mercury C75 E75 C85 CV85 B90 | JLM Marine

346-87122-0 Carburetor Repair Kit for Yamaha Tohatsu Mercury C75 E75 C85 CV85 B90

This comprehensive carburetor repair kit is engineered for Yamaha 75 HP (C75, E75), 85 HP (C85, CV85), and 90 HP (B90) outboard engines, as well as Tohatsu 25–30 HP and select Mercury 40 HP models. Manufactured from high-quality stainless steel and silicone materials, this kit delivers maximum durability and reliable performance for routine carburetor maintenance and repair.

This kit directly replaces OEM part numbers 346-87122-0, 6H1-W0093-01-00, 6H1-W0093-02-00, and cross-references with aftermarket numbers including 18-7291 (Sierra Marine), YA-C01 (OBR Red Rhino), 9-37501 (Mallory Marine), and Mercury 84475M. Professional-grade components ensure easy installation with no complicated tools required, conforming to strict quality control standards.

• Complete carburetor seal and component kit with all necessary gaskets, O-rings, float assemblies, and needle valves
• Simple installation process with no specialized tools required
• High-quality stainless steel and silicone construction for long-lasting durability

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 the following components (all quantities listed are per kit and cover three carburetors):

• 3 × Gasket (Part #688-14198-A2-00)
• 3 × O-Ring (Part #93210-04228-00)
• 3 × Needle Valve Assy (Part #692-14590-01-00)
• 3 × Pin, Float (Part #676-14186-00-00)
• 3 × Float (Part #676-14985-01-00)
• 3 × Pin, Float Arm (Part #688-14548-00-00)
• 3 × Gasket, Float Chamber (Part #676-14984-00-00)
• 3 × Screw, With Washer (Part #97980-04114-00)
• 3 × O-Ring (Part #93210-04230-00)
• 3 × Gasket (Part #663-14126-00-00)
• 3 × Screw, Pilot (Part #692-14923-00-00)

Note: Package is identified as 6H1-W0093-01-00 Carburator Kit for C75, C85, CV85, E75 (94~96), 90 (90~91), B90.

Installation Guide

1. Preparation: Disconnect the fuel line and remove the carburetor from the engine. Clean the exterior thoroughly before disassembly.
2. Disassembly: Carefully remove the float chamber by loosening the screws with washer. Take note of component orientation for reassembly.
3. Remove Old Parts: Extract the old float, float pin, float arm pin, and needle valve assembly. Inspect the carburetor body for wear or damage.
4. Clean Carburetor Body: Use carburetor cleaner to remove all fuel deposits and varnish. Blow out all passages with compressed air to ensure they are clear.
5. Replace Gaskets: Remove all old gaskets from mating surfaces and clean thoroughly. Install new gaskets from the kit in their proper locations.
6. Install O-Rings: Lubricate new O-rings lightly with clean engine oil before installation to prevent tearing or pinching.
7. Install Float Components: Insert the new float pin and attach the new float. Install the float arm pin and ensure smooth movement without binding.
8. Install Needle Valve: Attach the new needle valve assembly to the float arm. Verify proper engagement and free operation.
9. Replace Pilot Screw: Install the new pilot screw to the initial setting (typically 1.5–2 turns out from lightly seated). Adjust per manufacturer specifications.
10. Reassemble Float Chamber: Install the new float chamber gasket and reattach the float chamber using the new screws with washers. Tighten evenly in a cross pattern.
11. Reinstall Carburetor: Mount the carburetor back onto the engine with fresh mounting gaskets. Reconnect the fuel line and throttle linkage.
12. Test & Adjust: Start the engine and check for fuel leaks. Allow to warm up, then adjust idle mixture and speed as needed for smooth operation.

Troubleshooting & FAQ

Q: How do I confirm this carburetor repair kit fits my specific engine?
A: Verify your engine model, horsepower, and year against the compatibility table above. Cross-check your current carburetor part number with the part number cross-reference list. If your original part matches any number listed, this kit will fit.

Q: What are the signs that my carburetor needs a repair kit?
A: Common symptoms include rough idling, difficulty starting (especially when cold), fuel leaking from the carburetor, poor acceleration, or inconsistent engine RPM. If your carburetor has been in service for multiple seasons, a rebuild can restore optimal performance.

Q: How often should I replace or rebuild my carburetor?
A: Carburetor rebuild intervals depend on usage and fuel quality. For engines used regularly in saltwater or those stored with fuel in the system, inspect annually. Rebuild every 2–3 years or sooner if performance issues arise. Always use fresh, ethanol-free fuel when possible.

Q: Can I install this kit myself or do I need a professional?
A: Installation is straightforward for users with basic mechanical skills and hand tools. Follow the installation guide carefully and work in a clean environment. If you are unfamiliar with carburetor service or lack proper tools, professional installation is recommended for safety and optimal results.

Q: Does this kit include all three carburetors or just the parts for a rebuild?
A: This is a repair/rebuild kit containing replacement gaskets, seals, floats, and internal components only—it does not include complete carburetor bodies. The quantities listed (3 of each part) are sufficient to rebuild all three carburetors on applicable multi-cylinder engines.

Q: Is this an OEM part or an aftermarket replacement?
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.