I appreciate the help.
I purchased it for a great price ($100) the guy said that it was running but not well. I want to rebuild it and I an not sure how much I need to know to purchase all the parts. I am going to start the tear down in a few weeks and if I need to replace piston rods or crank or any major components I want to make sure that I am getting the right ones. Seems to me it could be important.