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15HP dunked in the river

ojh12

New member
New to the site, hay guys! Last fall my 15hp got swamped, I had the jonboat pulled up on the bank for the night, boats when past the landing at throttle and swamped the back of the boat, the motor bottomed it out on the skeg, the power head was above the water line but somehow water made it into the cylinders. When I tried the pullstart it locked the motor, I removed the plugs and cycled the water out of it. After drying everything, new plugs, I started it up and it ran kinda good. But it had an odd little hitch in the giddyup, almost like something was out of balance.
My question is there anything in the power head that I could have damaged when I tried the pullstart and it was full of water? Something delicate that got bent? I doubt I can generate enough power to bend a connecting rod. I don't know anything about 2 strokes, mine is a 1987 and has been a sweet little motor, I use it only a few weeks a year when fishing the Manistee in Michigan for salmon & steelhead. It stays up there, I don't have it here in Virginia so I can't pull something off and tell you what I see, sorry about that.
I am gathering parts up to fix it with, so far I have coil, wires, prop (it gets whacked often and maybe that is the vibration) - anything else you guys can think of?
Thanks for your help, Oj
 
Well if it was full of water in the crankcase over the winter it will run until it goes BOOM.------Water and precision bearings do not get along very well.
 
Ok, let me ask the question in a different way. How can water enter a cylinder if the powerhead was above the water. Can it enter thru the exhaust? If yes, is there anything in that system that could be damaged when I pulled to start the engine. Again, the powerhead remained above the water, the top of the jonboat just below the water and the skeg bottomed out. The boat did not sink, the engine was not immursed.
 
Yes it could if the valve was open. You said you tried to start it and it locked. That is called hydrolocking, that could have bent a rod.
 
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