so the question is ; what pulley ratio do I use? would it be 1:1? the motor is a Kohler K532 19.9 hp on my LGT 195 assuming full throttle 3600 rpm? ( is that correct rpm?) and the pump is the stock unit on a johnson model 12. I need to clean to see if there is any #'s on it . presently pump has 6" pulley so 6" on motor ? smaller or larger?
how many variables are there? any and all comments would be appreciated