2 Stroke cold compression test. Yamaha 90 Starts right up and runs great, not the best compression. Whats the lowest compression you’ve seen on a running motor? Lowest i’ve seen, that was still running 40 hp evinrude 40psi on both cylinders. #repair #mechanic #maintenance #fixit #mechaniclife #outboards #boat #outboard #boatlife #yamahaoutboards #repower #2stroke #compression #compressiontest | The Outboard Dr.
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2 Stroke cold compression test. Yamaha 90 Starts right up and run…
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