Itsa 1971 3 hp sears outboard thats been sitting in a barn for years .when I got it |I changed the oil in the lower unit .It would it idle but thats about it also there was oil in water of the trash can it was in .I have ordered a card kit and oil seals in an attempt to get this little motor up and running .My question is are there tricks to getting the seals out? any sage advice out there on these motors .any thing would be greatly apreiated