I'm new to this site and jet skis in general. I may be buying a 650sx from a guy who rebuilds and sells jet skis as a job. I'm guessing it will run pretty well since hes just finishing up today and I am going to look at it tomorrow. I don't know what parts were on it, but I saw a WORX racing sticker, if that means anything. I will probably not be doing huge jumps or flips, but maybe some jumping subs and power subs. Any suggestions on what i might need if I need anything at all? I'm mainly just worried about water getting in the ski and if it does, will it come out as I ride and/or cause major problems?