6H3-W0093-03 Carburetor Repair Kit & Gasket for Yamaha | JLM Marine

Carburetor Repair Kit & Gasket for Yamaha Outboard Engines – OEM 6H3-W0093-03

This comprehensive carburetor repair kit is engineered to restore optimal fuel delivery and engine performance on compatible Yamaha outboard models. Designed as a direct aftermarket replacement for OEM part number 6H3-W0093-03, this kit provides all essential gaskets and components needed for a complete carburetor rebuild.

Whether you're addressing fuel leaks, rough idling, or poor throttle response, this repair kit delivers reliable performance at a competitive price point. Built to OEM specifications in an ISO9002-certified facility, each component meets strict quality standards for consistent fitment and durability.

• Complete gasket and diaphragm set for thorough carburetor rebuild
• Precision-engineered for reliable sealing and fuel metering
• Aftermarket replacement compatible with Yamaha OEM specifications

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.

Note: Compatibility data for this kit is currently being expanded. Always verify fitment against your original part number 6H3-W0093-03 and compare component images before ordering.

Technical Specifications

Package Contents

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

• Complete gasket set for carburetor assembly
• Fuel inlet needle valve and seat
• Diaphragms and O-rings
• All necessary seals for proper fuel metering

Important: Verify that all components in the product images match your original carburetor parts before installation.

Installation Guide

1. Disconnect the fuel line and remove the carburetor from the engine following your service manual procedures. Work in a well-ventilated area away from ignition sources.
2. Disassemble the carburetor carefully, keeping track of all screws, springs, and components. Take photos during disassembly to aid reassembly.
3. Clean all metal components thoroughly using carburetor cleaner and compressed air. Inspect the carburetor body for cracks, corrosion, or damage.
4. Remove old gaskets and seals completely using a plastic scraper; avoid scratching sealing surfaces. Ensure all passages are clear of debris.
5. Install the new inlet needle and seat from the kit, ensuring proper seating depth. Replace all O-rings and seals with new components from the kit.
6. Install new diaphragms in the correct orientation, aligning any indexing marks or holes. Ensure diaphragms lay flat without wrinkles.
7. Apply new gaskets to all mating surfaces without using sealant unless specified by the manufacturer. Align gasket holes precisely with carburetor passages.
8. Reassemble the carburetor following the reverse order of disassembly, torquing screws evenly in a cross pattern. Do not overtighten to avoid warping.
9. Reinstall the carburetor onto the engine with a new mounting gasket if applicable. Reconnect fuel lines and ensure all connections are secure.
10. Prime the fuel system and check for leaks before starting the engine. Inspect all gasket areas while the system is pressurized.
11. Start the engine and adjust idle and mixture screws per manufacturer specifications. Allow the engine to warm up fully during initial run-in.
12. Test under load and verify smooth acceleration and consistent idle. Re-check for fuel leaks after the first operational cycle.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Yamaha carburetor?
A: Cross-reference your original part number with 6H3-W0093-03. You can find this stamped on your carburetor body or in your engine's parts diagram. Compare the components shown in our product images with your existing carburetor parts to ensure an exact match.

Q: What are the signs that I need a carburetor rebuild kit?
A: Common symptoms include fuel leaking from the carburetor, rough or inconsistent idle, difficulty starting, poor throttle response, or black smoke from the exhaust. If your engine runs rich or lean despite adjustments, worn gaskets and diaphragms are often the culprit.

Q: How often should I rebuild my carburetor?
A: Rebuild intervals depend on usage and fuel quality, but most outboard carburetors benefit from service every 2–3 years or 200–300 hours of operation. If your engine sits for extended periods or you use ethanol-blended fuel, more frequent rebuilds may be necessary.

Q: Can I reuse any of the old gaskets or seals?
A: No, always replace all gaskets, O-rings, and diaphragms during a carburetor rebuild. Reusing old components can result in fuel leaks, improper metering, and recurring performance issues that defeat the purpose of the rebuild.

Q: Do I need any special tools to install this kit?
A: Basic hand tools (screwdrivers, wrenches) and carburetor cleaner are sufficient for most installations. A carburetor rebuild stand or holder can make the job easier. Refer to your engine's service manual for torque specifications and adjustment procedures.

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.