There must be a serial or model number on it somewhere, go to the Jonhson web site or try searching the web with the make and model number. I'm sure you'll find it. Don't try to start it if you don't know if it is a 2 or 4 stroke ad you will trash it if you don't have any oil in the petrol if it's a 2 stroke, if it's a 4 stroke it will be a bit smoky!!
Nick
Nick Aird, June 2007