Cool to know about the special Fire Fighter models. I sold my Jonsered Turbo 2145 and kept the Turbo 2149 since has carb issues, let old gas sit in it for years. The guy I sold the 2145 to has hot restart issues. My 2149, I threw STP and Gumout gas treatment in it with fresh 91 non ethanol, will start every so often to see if it is helping. I may have to pull the carb. These are only two strokes I have owned that were trouble free for many years. Only neglect and heavy duty use, cut Oak, Ash and Elm when they were ran, not doubt did them in.