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2003 25 hp 4 stroke yamaha outboard

Titanium

New member
I just got a 2003 25hp yamaha 4 stroke, it is not frozen, but with
A breaker bar connected to flywheel nut, the motor is stiff to turn
Over. Not so hard that you have to strain but stiff, even with plugs
Out. The starter is not working, I believe the previous owner burned it up because the positive battery cable is melted about a foot long. Also it was low oil, real low. I filled it back up. Anyway anyone have any idea why it is so stiff?
 
Possible slight bearing seizure in lower unit, Main bearings damaged, piston rings starting to seize,valve train damaged or out of adjustment,to name a few.
 
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