Got a small problem that could easily become HUGE, for my simple self! just bought a mint 02 f-12, took it out, sucked up the ski rope, No big deal, caught the kill switch at the same time the rope went under the ski. But, there is a small 1\4 sized, grommet at the prop end of the shaft that's half on, half off, the barreled end. Keep in mind this ski has never been touched.I cant get the water inlet grating off, seems to be something else holding it besides the obvious 4 bolts. Maybe silicon? ALSO!! being a newbe too 4 stroke, maybe some of you fine folks could fill me in on the problems i should watch for with this model? ........................THANKS!