9 8 mercury outboard serial 4387693 what was the year built and can a carburetor off a 15 horsepower mercury fit this for more power speed if so what year on the 15 horsepower motor?

A 9.8 hp Mercury outboard, serial number 4387693, is a 1976 year model. The carburetor used on the 15 hp model, is of a completely different design, and will not interchange with the 9.8 (110) model.