So I got the boat back from the mechanic. He said my diaphragm was cracked so i replaced my vro pump to be safe. He also said he did a compression test and both cylinders were the same, and he cleaned my carbs. The shaking I was complaining about in previous posts did calm down alot so I'm happy about that, but it will still shut off every once in a while, while it is idling (although this did get alot better too). I also find when starting the motor I have to give it a little gas when it starts to keep it running, then I can ease off the throttle. The mechanic said he checked the plugs and they were good. What else can I look for?