The Rotax 462 is a 51 hp (38 kW), two-cylinder, two-stroke aircraft engine, derived from a snowmobile engine.
It was built by Rotax of Austria for use in ultralight aircraft.
[1] Data from ROTAX Repair Manual for engine type 462 - 532 - 582 ULlubrication, liquid-cooled, with integrated water pump
Related lists https://www.rotax-owner.com/pdf/HISTORICAL_RepairManual(1994)462-532-582UL.pdf