Yamaha - Reed Set - Intake System Component - 6H4-W0004-00-00

Overview

Reeds are one of those parts you don’t see working, but you definitely feel when they’re not. I’ve dealt with motors that just wouldn’t idle clean or had a hesitation off throttle, and worn reeds were the culprit more than once. When they seal right, the engine breathes properly and runs smoother across the range. It’s a small upgrade that can make a noticeable difference in how the motor responds.

Key Features

• Improved Airflow Control – Regulates air intake for efficient combustion and smoother engine response.
• Responsive Reed Action – Opens and closes quickly to match engine demand.
• Durable Reed Material – Built to handle constant flexing and engine vibration.
• Factory-Spec Fitment – Designed to match Yamaha intake systems for proper sealing.
• Restores Engine Smoothness – Helps eliminate hesitation, rough idle, and power loss.

Engine & Boat Compatibility

Designed for Yamaha outboard engines with compatible two-stroke intake systems. Commonly used across small to mid-range outboards on fishing boats, skiffs, and utility vessels. Always confirm part number compatibility before installation.

FAQ

Q: What are signs worn reeds need replacing?
A: Rough idle, hesitation, or loss of low-end power are common indicators.

Q: Can bad reeds affect starting?
A: Yes, poor sealing can make the engine harder to start.

Q: Is this something I can install myself?
A: It’s doable with mechanical experience, but proper assembly is important.

Q: Do reeds wear out over time?
A: Yes, constant flexing eventually leads to wear or damage.

Q: Will this improve throttle response?
A: It can, especially if the old reeds were worn or not sealing properly.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.