What does 50 to 1 fuel ratio mean?

Carri bean cruise as a cruise area? What is the best cruise line for the first time senior adult? Does anyone know what is the meaning of four short blasts on a ship's horn? How old is a 25 hp mercury outboard with serial number 9473672? Can a 1989 Yamaha wave runner cdi box be checked? What is a pall on an old sailing ship? What is the longest vehicle? Who owns the yacht checkmate? What do lateral markers indicate Boating? How long did it take Cabot to get across the Atlantic? Is canoe a verb? What minimum distance should you come near a navy vessel? Is a HOG in a boats keel a problem? What cruise vacation does Seaborne offer? What is the correct gas oil mixture ratio for a 2 stroke 1989 40hp Evinrude outboard motor? Why are two mirrors needed in a periscope? What side do you pass on if you see a rednder the inland rules bouys you? How fast do most jet skis go? What was the first steamboat called? What type of PFD is designed to turn most unconscious persons up?