Compact power supply and lubricant affording device therefor

A compact portable power supply comprising an outer housing having a carrying handle, an internal combustion engine supported within said outer housing, a cooling system for said engine comprising a cooling jacket for said engine, a radiator and means for circulating coolant between said cooling jacket and said radiator all within said outer housing, air inlet means in said outer housing for admitting air thereto, air outlet means in said outer housing for discharging air therefrom, said radiator being positioned in proximity to one of said air means, a combined generator, starter coupled to said engine for starting of said engine and for generating electrical power when said engine is running, said starter, generator being contained within said outer housing, a battery within said outer housing for operating said starter, generator when starting and for being charged by said starter, generator when said engine is running, a source of pressurized gaseous fuel for said engine within said outer housing and a lubricating system for said engine including a removable lubricant source accessible through an opening in said outer housing and closed by a removable closure.