FarmCraft101 | Understanding 2 Stroke Engines vs 4 Strokes. My 2 Stroke Johnson (Outboard) Part 4 @FarmCraft101 | Uploaded November 2021 | Updated October 2024, 7 minutes ago.
My Johnson is under performing(!!) and I'm feeling the pressure (or lack thereof). Should I tear it apart? Engines are complex and there is a lot of variability between them, so how to check compression may be different depending on the engine. I got through the details of 2 and 4 stroke engines, show the differences that will affect compression, and do some experiments to confirm.

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Johnson playlist: youtube.com/playlist?list=PLHACLo2Ax7LE8eRt1OyXGyWUxdT9F-cLN

Entire Johnson engine series:
Part 1: youtu.be/6F-gDg6zpPg
Part 2: youtu.be/GILDY6aKWic
Part 3: youtu.be/bpHVxNEyPcA
Part 4: youtu.be/3zzBIFZrNu0
Part 5: youtu.be/EvHEj7ssbxw
Part 6: youtu.be/Qbe-jwLLN-s
Part 7: youtu.be/2Cz-O-s3TJs

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Engine Compression Explanation and Experiments.
How To Check Compression On An Engine, With Experiments.
How To Check Compression On My Johnson (engine).
No Engine Will Run Without This. Explanation and Experiments.