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    COMPRESSION ON 1971 20HP JOHNSON

    " I have a 1971,20hp Johnson. " I have a 1971,20hp Johnson. I ran a compression test on both cylinders, one was 90 and the other was 91psi. I ran the test with both spark plugs out and no fuel hooked up.The engine had not been started in about 3 mth.I pulled the engine thru 8 times on both...
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