I just purchased a 15hp Evinrude 4stroke that has been sitting for 3 years. I operated it 6 times in 4 days so far and it is 50 degrees outside while water is only 40 degrees. The previous owner said it started and ran great. I have trouble starting the darn thing. I full choke and pull 5+ times and it doesn't fire. I wait 3 minutes, remove choke and pull 5 more times before it finally fires. Once started,it runs great. What is proper procedure for a cold start in very cold water? Where should the tiller handle setting be for start-at shift arrows? How do you stop the motor without pulling the Emergency tether? I also have fuel (1 or 2 teaspoons)pooling in back after 10 minutes of operation..it appears to be coming from carburetor but not from hose. Do I have a bad gasket or loose screws? Finally, do I have to open the bleeder valve on the tank cap while operating this motor? What has the history been for this model? What do I need to watch for?