I am new to the PWC world and just got given a 97 GTX and a 97 XP. The GTX runs but doesnt get up on plane quick and bogs down under load. Also it seems like it is running rich(smoking and fuel consumption). I have tried a few things I have read in the forum,cleaning carbs and rave valves,changing plugs and a few more small things. I am not sure where to check next? There does seem to be some small nicks in the impeller and I havent really looked at the wear ring yet. I am thinking this may be the next thing to check being there does seem to be some cavitation in acceleration and especially trying to pull a tube. Any and all advice would be appreciated.