I have a 1993 Bass tracker with a 40 evinrude tracker outboard. Everything runs AWESOME! serviced all the time. Heres my problem Sometimes when she feels like not running she wont. haha , she tries to turn over but there is NO spark at the plugs at all. It is like when u unclick the kill switch. It tries but doesnt allow spark. Its so intermittently. I could be cruising and then bam shuts down. Then wont start. i wait about an hour starts right up. Usaully when she starts the night before shes good for the next day BUT if she doesnt start that day its a trolling motor day. Im thinking the kill switch but i cant find a diagram of the wireing any help would be great!! Thnx