Can anyone point me in the right direction or tell me the proper process for winterizing this boat. I have a 2001 Seadoo Challenger 2000 and have both manuals but no info on proper winterizing. I have heard various things regarding the mercury optimax with m2 drive not needing antifreez and it drains each time the boat leaves the water. Each year it costs me about $200 to winterize and if I could do this myself it would be great. Any help is truly appreciated. Thanks