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    Mid 90s Johnson 115

    Well, I sprayed this in directly through the carbs throats while the engine was running just as suggested then let it sit for about 30 hours and ran it for 10 minutes or so at slightly above idle and redid the pressure test. Pulled all the plugs out and it brought the previously 70 psi cylinder...
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    Mid 90s Johnson 115

    I had just bought the gauge prior to doing the test so I don’t think it’s that. While I have the head off, I inspected the cylinder and cylinder wall and did not see any gouges or scratches in them. This motor was pulled off a old project boat and had been sitting for a while.I am going to get...
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    Mid 90s Johnson 115

    Yes. I did the compression test at idle throttle after the engine warmed up for about 20 minutes. Did not put it all the way open. EDIT: After reading more about performing compression checks, I will do another one tomorrow and post results. I did not pull all spark plugs out at once but did...
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    Mid 90s Johnson 115

    Just did a compression test. 3 of the 4 cylinders were at 90 +/- 3 and one cylinder was around 70. The cylinder that was at 70, I recently replaced the head gasket for because there was a leak. Attached is photo of old gasket. Bottom cylinder was 70 psi
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    Mid 90s Johnson 115

    Got it. Thank you for that I assumed it was the choke. I usually have to push the key in for the primer solenoid to kick in while starting.
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    Mid 90s Johnson 115

    I recently bought a mid 90s Johnson 115 2-stroke to put on my 72 Grady White. I have replaced the fuel pump, starter, and head gasket, changed the spark plugs, and water pump. It runs fine in the driveway on muffs (throttles up/down and goes into gear and runs), but as soon as I get it into the...
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