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1997 Polaris Big Boss 400 6x6 - Compression Specs

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i recieved a 1997 polaris big boss 400 6x6 and need to know what the compression #s should be on a new motor

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For 2 stroke engine the compression spec is 115 psi

For 4 stroke engine it has a auto decompression valve spec is 50 to 90 psi 

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I uploaded the factory service manual for the 1996-1998 big boss 6x6.

It just has to be approved by admin.

Hope it helps you.

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