I have a 96 seadoo xp 787 let my dad put a battery in it and he put the little ground wire to the ignition coil on the positive post. After finding that out i discovered the coil has a big crack in it and i then replaced it. I have no spark now after new coil. I chack the white wire going to bottom of coil and its only showing 0.06v when cranking. The seadoo ran good during the summer but i know something is still messed up i get 2 beeps when putting key on nob as well