I recently received a 1962 evinrude 18 h.p. it was previously hooked up to steering and throttle controls that were on his boat but the boat its going on does not. the engine has throttle/steering arm on it that i will be using. it has an electric starter and pull starter. the previous owner said it runs but im having trouble keeping it started. it turns over and begins to start with choke on it runs few seconds but wont stay running. it has brand new fuel tank and hose. where do i begin to solve this. also the electric starter is not hooked up and i want to hook it up if possible to save my shoulder and arm but the boat its going in doesnt have controls is there a way to do this.