99 115 johnson fitch started shaking while running

[cjc5151]

was fishing yesterday. while running to my spot the motor started losing speed and rpms. then it started shaking reak bad so i shut it down. when i started it back up it was fine until i put it in gear shaking returned. i fished for 2 hours went to start it and couldnt get it started. got the boat home and checked the gear lube and it was a milky green color (like a shamrock shake) sort of thin. im assuming i got water in my lower unit but why would this not allow me to start the engine. I just bout this thing so im sorry if im asking obvious questions but im at a loss. please help

[noelm]

I think you maybe on the wrong track here, I kind of dounbt water in the gearcase will stop the motor from starting, are you sure there was water in the oil before we go any further?

[ChampioNman]

You need to pull the spark plugs first and examine the condition of them. Next would be a compression test. Next would be to retrieve any codes from the ECU. You will need the diag software and a PC with serial cable for this.