Small Engine Problems? Ask an Engine Mechanic for Answers ASAP
Good morning Zena
Your machine is not very old and is a good one,troy built is a well known mower and has a good reputation,I do not want to tell you a figure because i cannot physically see the mower,however if you could see what a new one costs and subtrack,100$ per year of use you should be in the rite ball park for a selling price.
I hope this has been helpfull to you,and you get a good return for your mower.