A compression reading of 45 psi on the right side of a 1997 Polaris Indy Trail 500 is significantly low, as typical compression values for this engine should be around 120-130 psi. Low compression can indicate issues like worn piston rings, a damaged cylinder, or a faulty head gasket. It is essential to perform further diagnostics, such as a leak-down test, to pinpoint the exact cause and determine the necessary repairs to restore engine performance.
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