Merc Stator Melting


My father and I recently bought a 1989 Vasserret with either a 1985 or 1986 150 mercury black max xr2. When we bought it we knew something was wrong with the motor which was fine because we were going to fix and sell the 150 and put on a 200 we had. First time out it did not run right so we took it home and saw the stator was melted. After replacing that we took it out again to test it and it ran good for about 15 minutes until it became doggy, and when we removed the cowl we could tell the stator had melted again because of the smell. So we took the boat to a marina to see what was wrong and they thought maybe it was the flywheel or the crank had been damaged and was spinning in an oblong circle causing too much friction with the stator. So they checked the crank and that was fine, so they replaced the flywheel. After testing it out it melted another stator. At the marina they had a spare motor to run to see if they could find the problem so they completely swapped motors, harness, flywheel, everything, they spent 5 hours rebuilding the motor and took it out and it melted another stator. So now it has to be something electrical in the boat right? Well any information you could offer would be greatly appreciated. Keep in mind I am only 16 but I do have some knowledge about boats because I have been raised on them, my father is the real brains when it comes to motors.
Thank you again.




Sounds like the starter motor is staying engaged after you start it. Could be the solenoid, but probably the bendix. Start it with the hood off and watch what happens. The problem should surface then.




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Mark C.


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