I just bought a 1990 550. The lady who sold it to me didn't know much other than that it ran last summer and that somebody at a ski shop said all it needed was a new battery and the starter box. I dont know what its called, but its the black box with the coil, starter solenoid, etc. Any suggestions on where to find this part, or about how much it will cost? Also, I don't have a trailer, any suggestions on launching from a truck bed?