Launched the boat, started the motor and was idling fine for a minute or so while tied to the dock but the fuel line fell from the connector at the motor and engine died. Plugged it back in and restarted the motor, slowly motored away from the dock but only went a hundred feet or so as it was running roughly then abruptly died, failed to restart so we had to paddle it back to the dock. When trying to restart it it just clicked which I thought was from the older battery giving up the ghost but now I'm pretty sure it was not the battery. The engine must have seized at that point.
Got home, found a small crack in one of the fuel lines so replaced all the lines and installed a new battery. Tried to start it and found the motor was locked up. I can't get it to turn more than a few degrees either way with a wrench on top of the flywheel.
I am puzzled about this as I have a fair amount of experience with 2 stroke motors and have never seen one seize unless it was running very hot or a lubrication failure. I have 50-1 premix in the tank and used the same mixed fuel on two previous outings. Motor temp had to be very low.
Is there something about outboard design I don't know about that can cause a motor to lock up like it has? Is there anything I can try before pulling the powerhead?
Thanks for your ideas guys.
Got home, found a small crack in one of the fuel lines so replaced all the lines and installed a new battery. Tried to start it and found the motor was locked up. I can't get it to turn more than a few degrees either way with a wrench on top of the flywheel.
I am puzzled about this as I have a fair amount of experience with 2 stroke motors and have never seen one seize unless it was running very hot or a lubrication failure. I have 50-1 premix in the tank and used the same mixed fuel on two previous outings. Motor temp had to be very low.
Is there something about outboard design I don't know about that can cause a motor to lock up like it has? Is there anything I can try before pulling the powerhead?
Thanks for your ideas guys.