66M-14301-11 Carburetor for Yamaha Mercury F9.9 F13.5 F15 | JLM Marine

Carburetor Assembly for Yamaha & Mercury F9.9, F13.5, F15 Outboard Engines

This aftermarket carburetor assembly is designed to fit Yamaha and Mercury 4-stroke outboard engines rated at 9.9HP, 13.5HP, and 15HP. It provides reliable fuel delivery for models from 1998 and up, including manual start configurations and select Parsun engines.

This carburetor directly replaces a wide range of OEM part numbers across Yamaha, Mercury, Sierra, and Parsun brands, offering broad compatibility and simplified sourcing for engine maintenance and repair.

• Engine Type: 4-Stroke Outboard
• Fuel Type: Gasoline
• Condition: New

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

• 1 × Carburetor Assembly (OEM Number: 66M-14301-11)

Installation Guide

1. Disconnect the fuel line from the old carburetor and ensure no fuel is leaking. Have a clean rag ready to catch any residual fuel.
2. Remove the air intake cover and air filter to access the carburetor mounting bolts.
3. Disconnect the throttle and choke cables by loosening the cable clamps or retaining clips.
4. Unbolt the old carburetor from the intake manifold using the appropriate socket or wrench. Keep all fasteners for reuse.
5. Carefully remove the old carburetor and inspect the intake gasket for damage or wear.
6. If the gasket is worn, replace it with a new one to ensure a proper seal.
7. Position the new carburetor onto the intake manifold, aligning the mounting holes with the gasket.
8. Hand-tighten the mounting bolts first, then torque them evenly in a cross pattern to manufacturer specifications.
9. Reconnect the throttle and choke cables, adjusting tension as needed for smooth operation.
10. Attach the fuel line securely to the carburetor inlet and check that all connections are tight.
11. Reinstall the air filter and intake cover, ensuring all clamps and fasteners are secure.
12. Prime the fuel system, start the engine, and check for leaks or irregular idle. Adjust the idle speed and mixture screws as necessary.

Troubleshooting & FAQ

How do I confirm this carburetor fits my engine?
Verify your engine's model number and year using the Compatible Engine Models table above. Cross-reference your original carburetor part number with the Part Number Cross-Reference table to ensure compatibility.

What should I do if my engine idles rough or stalls after installation?
Check that all fuel and air connections are secure and free of leaks. Adjust the idle speed screw and mixture screw according to your engine's service manual, and ensure the air filter is clean.

How often should I replace the carburetor?
Carburetors typically do not require regular replacement unless they become damaged, clogged beyond cleaning, or fail to maintain proper fuel delivery. Regular cleaning and maintenance can extend carburetor life significantly.

Can I use this carburetor on a 2-stroke engine?
No, this carburetor is designed specifically for 4-stroke outboard engines. Using it on a 2-stroke engine will result in improper fuel delivery and potential engine damage.

What are the signs that my carburetor needs replacement?
Common symptoms include difficulty starting, rough or erratic idle, poor acceleration, excessive fuel consumption, black smoke from the exhaust, or fuel leaks around the carburetor body.

Is this an OEM part or an aftermarket replacement?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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.