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Why a two stroke bike engine is losing compression?

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Wiki User
May 19, 2007 3:40PM

It could be a number of things, like a broken or worn ring, or a leaking head or base gasket. If it happened suddenly, I'd suspect a broken ring. If it happened gradually, I'd suspect it's a wear issue. If it's accompanied by a noisy piston, (sometimes called, "piston slap") then I would suggest it's time for a top-end job. Good Luck