I am having a constant issue with my twin 2008 Yamaha F150's dying when I go into gear or back in to neutral. The engines are well tuned and fresh so we have gone through all of the fuel considerations, idle etc. I think I am having an interrupt switch issue but am not familiar with it. I have two dual Yamaha binnacle set ups at the helm and deck and it happens at either location. Sometimes one dies and sometimes both die. I heard that there may be a service bulletin on it but I can?t find one. It is not the same every time but you can go into gear on one engine and it kills both either forward or reverse or you can put both into gear and do the same. Sometimes they don?t die at all. Has anyone else had a similar issue and if so what did you find?
