Good choice. If you want to save a few bucks at first you can run it off a car/motorbike battery if you have one around the place (just be careful of the acid) but you can get 12V 7Ah gel cells for about $20 and a charger for a few bucks more. Until you get into engines bigger than 120's (in fact I even use mine on a twin cylinder 160!) that starter'll make starting every engine you have so much easier - you'll wonder how you lived without it.