1995 seadoo xp was winterized with antifreeze, after i drain that out and connect the hose, i should just be able to start her up, let her run, and thats it right? no need to replace the antifreeze with water correct?
Fire it up, connect the hose to flush, run for a brief moment to burn off the fogging oil. Shut off hose and disconnect, then shut off the ski. Maybe change the plugs and fresh gas, then tow to the lake and have fun.
I'd charge the battery first of course and check oil levels before starting for the first time of the season.