My old boat (my Dad's boat, i'm keeping for my boys to use) has a 1979 55HP Johnson.
Earlier this year i had the wiring harness replaced and they changed the water pump at the same time. we ran it a couple of times and it ran great.
I took it back to the same shop to have them put new seals in the lower unit cause it was getting water in.
My son put it in the water for the first time since lower unit seal work this weekend. He said it started up good then ran about 300-400 yards and the control unit buzzer sounded and the motor slowed then shutdown. He smelled something burning and took the cowling off. Saw where some insulation on wires melted cause they were against the head.
Sounds to me like the motor overheated because of lack of water flow.
Question is, could something have been messed up during the work on the lower unit to cause a cooling water problem? like blocking a water channel or something?
I haven't had a chance to look at the motor myself.
thanks.