I have a 7.5hp Sears Gamefisher model 217-586-752 bought at a garage sell. I am a retired vet that was a mechanic in the military. I cleaned out the carb, adjusted it and installed the fuel pump at the correct 45 degree angle which fixed my loss of prime problem. I cleaned the points and fixed a continuity issue from corrosion, pulled head and removed carbon, fuel and oil deposits as it was pre-igniting and replaced broken water pump and installed new plugs, impeller and replaced gear lube. Installed new shear pin which I made from brass rods bought on eBay It now runs great but found out when you rev it high in forward gear it pops out, disassembled lower end and found a stripped clutch dog part 26866 have been unable to locate anywhere. I have tried eBay , Certified Marine, Brazilian Connection where I found and replaced a broken shift lever. Now I know why it was broken. Please any help would be greatly appreciated. Thanks