Hello new to the group here in this forum and looking for some help. I was on a deployment for 8 months and just got back. I left my boat up the entire time. In the gas I put fuel treatment to make sure that it wouldn't go bad while I was gone. So the other day I take it out and run it. The boat ran fine for a little while. even took it out and opened her up and she got up to speed no issue sounded really good. We then go to go fishing and while we are fishing I have the motor off. When I try to start her up she sound like ass and wont start. When I put it in gear it would just die. It would pop and sputter and just sounded like something was not firing. So I take it home and remove the inline fuel filter, the water separator filter and rebuild the fuel pump. Still no change its back firing a little and will not rev. When I rev it it just bogs down. I am not sure where else to go but to the electrical side. I don't think its the carbs because it was running fine 20 min before I turned it off. So now I am thinking ignition coils. Can someone please help me with this. What test can I do to eliminate all the things it could be and fine the issue.