I'm buying my first seadoo on Sunday. Its a 1996 Seadoo speedster and the lady I'm buying it from said it does not have the two batteries. I was wondering if anyone knew what size batteries I need to buy because I want to hear it crank before I pay her for the boat. Also, if you know what size spark plugs it takes that would be a help too, because I'm driving 4 hours to pick up the boat I want to have extra spark plugs too just in case. If you have any other helpful comments for me then they would be greatly appricated. I'm super excited as this is my first boat!