this is a 1948 sears scott atwater 7.5 twin hp motor. it is usually just as antique conversation piece in the garage that is cool to look at while drinking beer. lol i have had the motor running in the garage and has not been put on the boat. it runs fine, has a small mist when running just barely at idle speed, runs very well opened up, it may just need a tuneup are carb cleaning, might just need ran for a little while! i really do not know alot about it. it has been tastefully painted with our beloved buckeyes colors scarlett/grey with the small buckeye leafs on the top and back covers. it is a direct drive, air cooled engine and that is about the extent of my knowledge of this motor. any one interested can email or call, my name is dan and can be reached at 614-332-6017. asking $500 o.b.o.