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The JE single piston for Yamaha YXZ1000 is offered with a 9.5:1 compression ratio and intended as a single replacement for that engine application. It supplies the explicit compression spec needed when performing a piston replacement or engine service on the YXZ1000, allowing mechanics to match compression settings without relying on generic or uncertain sizing.
JE Pistons Yamaha YXZ1000 9.5 to 1 Piston Single
