Yamaha - Main Nozzle - Carburetor Fuel Metering Component - 7FL-14941-2H-00

Overview

This is one of those small carb parts that can cause big headaches when it’s not right. The main nozzle controls how fuel is delivered at higher throttle, so when it’s clogged or worn, you’ll feel it immediately out on the water. I’ve seen engines lose power or surge just from a dirty or damaged nozzle. Keeping this piece clean and properly sized makes a noticeable difference in how the motor pulls.

Key Features

• Precise Fuel Metering – Regulates fuel flow through the carburetor for consistent performance at mid to high throttle.
• OEM Calibrated Design – Built to exact specifications for proper fuel delivery without guesswork.
• Compact Critical Component – Small part with a major role in engine efficiency and throttle response.
• Reliable Material Build – Designed to handle fuel exposure and resist clogging when properly maintained.

Engine & Boat Compatibility

Designed for Yamaha outboard engines equipped with carbureted fuel systems. Commonly used in applications where accurate fuel metering through the carburetor is essential for proper engine performance.

FAQ

Q: What happens if the main nozzle gets clogged?
A: You’ll usually notice loss of power, hesitation, or the engine struggling to reach higher speeds.

Q: Can I clean this instead of replacing it?
A: Sometimes, yes. But if it’s worn or damaged, replacement is the better long-term fix.

Q: Does changing this affect engine tuning?
A: It can. Using the correct nozzle size is important to keep the fuel mixture where it should be.

Q: How does fuel quality impact this part?
A: Poor or dirty fuel can clog the nozzle quickly, especially if filters aren’t maintained.

Q: Is this difficult to access during maintenance?
A: It depends on the setup, but it’s typically accessible once the carburetor is opened up.