this mower is self-propelled and has electric start. the battery pack is dead, so I just use the pull start. having trouble starting and keeping running right now. (maybe the gas I don't know) I put in a new carburetor. not a cheap amazon one but an OEM Briggs and Stratton one from the mower shop. have too many mowers here and need to start clearing them out. if you want to take on this mower it has a lot of potential with all the options. I don't want to mess with them anymore. ph# in pics