I just bought a 95 xp720 I took it out for the first time on the weekend and started fine ran fine but wouldnt move, I took it out of the water and brought it home hooked the hose up to it and looked up the to see the impellar and It wasnt turning idling or reving it up. So I tore into it lastnight and nor the splines on the shaft or the impellar seem to be burred at all Any HELP WOULD BE GREAT THANKS