Johnson model J115FTLECS 115hp 2 stroke

by Brian
(Buffalo NY)

2 cylinders are not firing, same side of the engine. I've checked for spark and it's good (also changed out coils, cables and plugs) I'm getting fuel I believe because it's leaking out of the air intake and unburned oil gas mixture is coming out of the exhaust. It seems to run fine on the 2 cylinders that are working, idles and revs up.

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