... *Power:4Kv *Speed:3800rpm YY11000A type positive pressure smoke ventilator is made of stainless steel air duct, the axle bracket ... , fuel tank and filler12, handle (drag the smoke ventilator )13, a fan shroud14, the gasoline engine crankcase lubricating oil inlet and ... oil gauge15, the gasoline engine crankcase drain plug16, a fan impeller17, the gasoline engine ignition switch18, the gasoline engine ...