I have a 1988 Jounson 100 hp motor . It came on the 21 ft. Tolman skiff i bought from a local boat builder. Nice boat the lower unit is from a 200 hp and i was told is a commercial long shaft unit . I want to change the water pump and would like to know if anyone knows if the 100hp pump kit will fit or do i have to get a 200 hp kit do i need to open it up first???
