i just picked up a 97 gsi in great shape it just has a problem with starting and it will only run for a short time and will die i am not sure how the dess works like how many beeps when plugged in and it does not always react when the teather is plugged in. The boat has very low hours on it the guy i got it from said it has been doing that since the second summer he got it and the dealer here is not to up on water craft i tried to get a wiring diagram and they had no books. one other thing is can i bypass the dess and just put a regular teather on it. Thanks for any help because i know nothing about the electronics on this boat