freeze plug on top of engine.
25hp
1972 25hp
24:1
Model number E25TELCSA, is a tiller electric start, 20" shaft, 1980 year model, 25hp Evinrude outboard.
Serial number 35514 show up to be a 1958. A list of serial number are post on http://www.marineengine.com/manuals/evinrude/
Around 150 to 200
1986
The year model of an Evinrude outboard cannot be determined from the serial number, but rather from the model number.
Evinrude and Johnson outboards use the engine model number, rather than the serial number, to determine the year model. The model number will be on the same plate/sticker as the serial number.
The 5602R is a 1966 Evinrude
With that serial number it would be a 1986.
how old is my mercery 25 hp motor with serial number 9526046