I purchased a Boat that has a Force 150, the engine turns over but is pumping fuel out of to of the Carbs, I plan on rebuilding all the Carbs. In the purchase the owner also noted that the engine was stalling, I can only assume at this point that it is the carbs, but he metioned also a vaccum leak any advice would be apprecaiated at this point. First outboard that I am diving into, so take it easy on a rookie.