Yamaha - Pilot Jet #41.3 - Carburetor Fuel Metering Component - 7CU-1414J-16-A0

Overview

Pilot jets are one of the first things I check when an engine won’t idle right or feels off coming off throttle. It doesn’t take much—just a little buildup or the wrong size—and you’ll feel it immediately. I’ve seen engines smooth out completely just by putting in the correct jet. When it’s right, idle settles down and throttle pickup feels clean and responsive.

Key Features

• Low-Speed Fuel Control – Regulates fuel flow at idle and low throttle for smooth operation.
• Precision Jet Sizing – Calibrated at 41.3 for accurate fuel-air mixture in carbureted systems.
• OEM Threaded Fit – Installs cleanly into the carburetor with proper seating and alignment.
• Improves Idle Stability – Helps eliminate stalling, hesitation, and uneven low-speed performance.

Engine & Boat Compatibility

Designed for Yamaha outboard engines equipped with carbureted fuel systems that utilize a pilot jet for low-speed fuel control. Commonly used across a range of Yamaha outboards where smooth idle and clean throttle response are essential.

FAQ

Q: What are signs this pilot jet is clogged?
A: Rough idle, stalling, or hesitation when you first apply throttle are common signs.

Q: Can I clean this jet instead of replacing it?
A: You can try, but if performance doesn’t improve, replacement is usually the better option.

Q: Does jet size affect engine performance?
A: Yes, even small differences in size can change how the engine runs at low speeds.

Q: How does fuel quality impact this part?
A: Dirty or old fuel can clog the jet quickly, especially without proper filtration.

Q: Any tips for installation?
A: Make sure it’s seated properly and avoid over-tightening when installing.

• Supersessions
  7CU-E414J-16-A0