Yamaha - Reed Valve Assembly - Air Intake & Fuel Control - 6H5-13610-00-00

Overview

On a two-stroke Yamaha, the reed valves are a big part of how the motor breathes, and when they’re not sealing right, you’ll feel it immediately. I’ve worked on engines that just wouldn’t idle clean or had a hesitation off throttle, and it often came back to worn reeds. It’s not always the first thing people check, but it makes a noticeable difference when it’s right. Swap in a fresh assembly, and the motor usually wakes right back up.

Key Features

• Controlled Airflow Function – Regulates air and fuel mixture entering the engine for proper combustion.
• Responsive Throttle Behavior – Helps improve engine response and smooth acceleration.
• OEM Precision Assembly – Built to Yamaha specifications for proper sealing and fit.
• Durable Reed Construction – Designed to handle repeated flex cycles under engine operation.
• Restores Engine Efficiency – Supports consistent intake flow and overall engine performance.

Engine & Boat Compatibility

Designed for Yamaha outboards equipped with compatible two-stroke intake systems. Commonly used on small to mid-size engines found on fishing boats, skiffs, and recreational vessels. Always verify compatibility with your specific engine before installation.

FAQ

Q: What are signs of worn reed valves?
A: Rough idle, poor throttle response, or spitting fuel back through the intake are common signs.

Q: Can bad reeds affect fuel efficiency?
A: Yes, improper sealing can disrupt the air-fuel mix and reduce overall efficiency.

Q: Is this difficult to install?
A: It takes some disassembly to access, but it’s manageable if you’re comfortable working on intake components.

Q: Should I replace all reeds at once?
A: Yes, it’s best to replace the full assembly to keep everything balanced and consistent.

Q: Does storage affect reed valves?
A: Sitting for long periods can cause reeds to stick or lose flexibility, especially with old fuel exposure.