I recently accuired a b&s 5 hp motor from the dump and am attempting to get it going. I have done this a few times with success but have a question. The mower I took the engine from was in a pile, upsidown! and full of oil and gas. When i flipped it over, oil leaked out of the carb (from crankcase vent i assume) and went everywhere. Do I need to take any extra precautions before attempting a start up other than the general clean up, spark plug and a carb rebuild i was planning? Thanks