Update: re-clamped all of the fuel lines and replaced the primer bulb. Took it out and it ran great for about 10 minutes. Started to misfire at 3200 rpms. Put it on the trailer and took her home. Plugs looked pretty black so I replaced them. Took her out again and it ran fine for about 20 minutes. Then it started misfiring at high, low and middle rpms. I've heard the possibilities are loose wiring harness, dirty filters in the VST, even a bad oil pressure switch. Any help would be greatly appreciated. Motor is a 2005 Mercury 115 4 stroke EFI Optimax Saltwater.
