Carburetor Rebuild Kit – Fits Mercury/Yamaha 75-100HP 4-Stroke (Replaces 804346T1, 67F-W0093-00-00)

Carburetor Rebuild Kit – Fits Mercury/Yamaha 75-100HP 4-Stroke

This carburetor rebuild kit provides all the necessary components to restore the performance of carburetors on specific Mercury, Mariner, and Yamaha 4-stroke outboard engines. It is designed to fit Mercury/Mariner 75-90HP models from 2000 and up, and Yamaha F75, F80, F90, and F100 models from 1999-2002.

This kit serves as a direct replacement for multiple OEM and aftermarket part numbers, including Sierra 18-7743, Mallory 9-37512, Mercury 804346T1/804346T02, and Yamaha 67F-W0093-00-00, ensuring a precise fit and function.

• Installation: Designed for direct replacement of OEM components.
• Key Component: Includes the carburetor float, a common failure point not always present in basic kits.
• Fuel Type: Compatible with standard gasoline fuel systems.

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.

Technical Specifications

Package Contents

• 1 x Carburetor Repair Kit with Float (Replaces 804346T1, 804346T02, 67F-W0093-00-00)

Installation Guide

1. Safety First: Shut off the fuel supply and disconnect the negative battery cable.
2. Access the Carburetor: Carefully remove the engine cowling and any other components obstructing access to the carburetor.
3. Disconnect: Note the position of and disconnect all fuel lines, vacuum hoses, and throttle linkages attached to the carburetor.
4. Remove Carburetor: Unbolt and remove the carburetor from the intake manifold.
5. Disassemble: Working on a clean bench, carefully disassemble the carburetor. Keep parts organized in trays.
6. Clean Components: Thoroughly clean all metal components with a quality carburetor cleaner and compressed air. Do not use cleaner on rubber or plastic parts.
7. Install New Parts: Replace the old gaskets, seals, O-rings, needle-valve assembly, and float with the new parts from the kit.
8. Reassemble: Reassemble the carburetor, ensuring the float is set to the correct height as per your engine's service manual.
9. Reinstall: Mount the rebuilt carburetor back onto the engine, reattaching all lines and linkages.
10. Check for Leaks: Reconnect the battery and fuel line. Prime the fuel system and carefully check for any leaks.
11. Test and Adjust: Start the engine and let it warm up. Adjust the idle speed and air/fuel mixture screws according to the manufacturer's specifications.

Troubleshooting & FAQ

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

A: First, check your engine's model and year against our "Compatible Engine Models" table. Second, verify your existing part number matches one of the numbers in the "Part Number Cross-Reference" section. Using our compatibility guides for Mercury or Yamaha can help confirm your exact model.

Q: What are the common signs that my carburetor needs to be rebuilt?

A: Symptoms of a faulty carburetor include difficulty starting, rough or unstable idling, stalling at low speeds, poor acceleration, increased fuel consumption, or visible fuel leaks. A rebuild with a quality kit can often solve these issues.

Q: Does this kit include the carburetor float?

A: Yes, this is a complete rebuild kit that includes a new float. The float is a critical component for regulating fuel level in the bowl and is a common point of failure that can cause flooding or fuel starvation.

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.