I have an old motor that I want to clean up and sell but I can not get it to run. It is a 94 Suzuki 25 hp with 3 cylinders. If I start it with starting fluid it will start, and with enough throttle it stays running, but if I looking inside the carbs it looks like 1 carb isnt spraying enough fuel compared to the other 2. Is my best bet to just take it apart and give it a good cleaning? Other ideas?