i have a 99' ultra 150. took it out, was running great. i left the power on over night, and the next day it wont start. i thought it was just the battery, so i charged the battery and that did nothing. i bought a new battery, and ski still wont start. when i attempt to start the ski i hear what sounds to me like something is opening and shutting. it only makes the sound once when the start is pressed. Any ideas what the problem is, and how i can fix this?