Fits Yamaha QT 50 / Yamahoper 1979-1987. Carbon Reed Valve for Yamaha PW 50. Yamaha QT 50 / Yamahoper 1979-1987. fits Yamaha PW 50 / Y-Zinger 1981-2018. Yamaha PW 50 / Y-Zinger 1981-2018. Carbon Reed Valve as described.
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