Bought my first boat and cant id the year of the motor and not real sure who the manufacturer is to get parts. On the engine cover there are two names that are glued on one is US Marine power , the other is Force. also a big 50 on the side, im guessin 50 horsepower? My model # is 508F90D. made in Hartford WI. It runs but havent been in open water yet. Just in my drive way . All the linkage on the side of the motor seems tight and stiff hard to throttle up. not the carb .all the rods on the side of the motor, cables ok. Want to know all I can about this motor so i can eventually get a repair manual to keep it operational. Any one know what a throttle friction knob does? function? This is all new to me. thanks.
