640 Power Reed Black For Yamaha IT And YZ Dirt Bikes Lightweight Top Reed Upgrade For IT250 IT400 IT425 IT465 IT490 WR250 YZ250 1978-1989 YZ400 YZ465 YZ490 1979-1983 Sharp Throttle Response And Easy Start

Lightweight Black Power Reed Upgrade for Yamaha Dirt Bikes
✔️ Dual stage black reed for Yamaha YZ IT bikes 1978 to 1989

This power reed is a direct fit upgrade part used on classic Yamaha dirt bike engines to improve how the motor breathes and responds.

✅ Fits Yamaha IT250 IT400 IT425 IT465 IT490 and WR250 YZ250 YZ400 YZ465 YZ490 models
✅ Dual stage fiberglass design gives more airflow at all RPM ranges
✅ Lightweight top reed delivers crisp partial throttle response and easy starts
✅ Stiffer bottom reed boosts high RPM flow and horsepower output

💡 What is a power reed used for on a dirt bike? A power reed controls airflow into the engine for smoother running. - handy upgrade that improves throttle feel from idle to wide open - helps dirt bike engines start quicker and rev cleaner in the woods or on the track - common choice for older Yamaha two strokes that need fresh reeds after hard use

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