Hello Guys
The engine I have is the Sport version according to what Tom R wrote,it has a single dot on the left top fin to the rear. I`m glad is not the R version it should be easier to deal with. I took the bearings out and the front one has a part number ,the rear one I can`t find a number in it. Are the bearings sold by Boca Bearings good for this engines? I`m taking about the high speed ones not the economy. They have corrosion and need to be replaced. I will make sure everything is ultra clean before assembly. I took the crank and barings out. Thanks guys the more info I get the better.

Juan