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Banshee compression check


Don29palms
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My manual says Yamaha doesn't list specs but each cylinder should be within 10% of each other. One cylinder is 125 and one is 120 but is that enough?

Thats within 10% of each other. It sounds a snitch low but it sounds like the rings are wearing evenly on both cylnders. I read on Alba's web site that they like to shave the head and run there stock banshees at 155-160 psi.

Most of my freinds running their ported, polished, and bored banshees run around 175 psi. But they are changing their dome size to get there.

Ill call a freind today who knows this stuff inside and out and see where you should be on a complete stock banshee and repost tonite.

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