I have a 1989 Johnson outboard engine. 140hp V4. Last year I must have picked up some bad gas. Before I got my boat on the water this year I emptied the gas tank and found that there was about 5 or 6 gallons of water in the tank. I cleaned all of it out and put new spark plugs in and a new gas filter. I still cant get the frigen thing running. I checked all the plugs and they are all firing. I cant figure out why it wont start. Someone please help me. I have put all new gas in the boat and a bottle of dry gas from Napa. I dont know what else to do. Please help me. Thanks