The motor starts fine on cold mornings with a little choke and runs well. Then later in the day it is very hard to start and seems flooded. It will hit and then die when giving it some throttle. It takes several attempts to keep it running and get underway. Once I get under way it runs fine. Now at home I just pulled the top cover, there is gas and oil residue below. When I pulled the black cover off the carbs I noticed gas and oil in each round opening. Also, the plugs are wet. The red lever is in the down position and does not appear damaged. Your help will be greatly appreciated.