I have a chance to purchase a 25hp Merc. The guy says that the motor has been in a shed for a long (5-8years) time. Do not know if it still runs. Whhat should I do/check before trying to start? Cosmetically the motor looks brand new. He is letting me take the motor, try it out, and make an offer. I am trying to find out the year of the motor, serial # is 0D018407. In my research it looks to be a 1991, if iI am correct. Depending on the year, if it runs what would be a fair price for this motor. Thanks in advance. fficeffice" />>>