Not to change your direction of thought here, but this sounds like the carb rebuild needs doing again. You said you're flooding. You have spark. TV is very trouble free, or it doesn't work at all. I would suggest you open the service manual for your motor, if you don't have it, use the free online one from boatinfo.no It has a very detailed carburetor rebuild and settings section. My bet is you have some crud opening a throttle pump check ball, or a float height that is wrong. Bad power valve an also dump fuel.
