Yard Machines 31D-140-352 Single Stage 21” Snow Blower Condition is used. See pictures for reference. Good Working Condition. Model: Yard Machines 3.5hp 21′. Electric And Manual Start. Manual Choke And Primer. Runs On Fuel/Oil Mix. 21” Clearing Width. Located in Waynesboro, PA. Orders paid on weekends (Sat-Sun) will not be processed until Monday.