Tough Starting

Well, I installed my carb back onto the boat and took it for a test run, or at least I thought I was about to. With the battery all charged up I took the boat to the lake. While attempting to start the boat with out any extra throttle the engine would turn over but not fire up. So, I pulled the neutral pin and gave it some gas. Eureka, it started up right away but it was running really rich. The boat was sending up a column of blackish blue smoke like and old coal burning train. finally to top it all off the battery died after too many attempts to start the boat in neutral.