Getting the right fuel-to-air ratio is key to smooth, efficient engine performance, and the Yamaha Main Jet #108 (65W-14943-79-00) is built to deliver precise fuel metering. Designed to regulate fuel flow within the carburetor, this genuine Yamaha jet ensures optimal combustion, crisp throttle response, and consistent power output in a range of marine conditions. Whether you’re idling through no-wake zones or pushing full throttle, the right jet keeps your outboard running clean and strong.

Built for Performance & Reliability

• Precise Fuel Regulation – Maintains the correct mixture to enhance power delivery, reduce fuel waste, and improve overall efficiency.
• Durable Marine-Grade Construction – Crafted to withstand heat, corrosion, and constant fuel exposure, ensuring long-term reliability.
• OEM Fit & Function – Designed to Yamaha’s exact specifications for a seamless fit and hassle-free installation.

Keep Your Engine Dialed In

Compatible with Yamaha F25 and T25 outboards, this main jet plays a crucial role in keeping your engine running smoothly and efficiently. Regular jet inspections and replacements help maintain peak fuel economy and throttle response, ensuring your outboard is always ready for the next ride.