MODEL Model / Model Code EF-5200DE SIZE AND WEIGHT: Physical Dimensions ( L x W x H ) 35.2" x 20.5" x 20.1" Dry Weight 192 lbs ENGINE: Engine Type 4-Stroke, OHV, Air-Cooled Number Cylinders / Displacement 1 / 301cc 10hp Oil Type Yamalube 4, 10W30 FUEL TANK: Capacity 21L (5.5 gal) Fuel Type Unleaded Regular COOLING SYSTEM: Cooling Type Air Coooled GENERATOR: Type Brushless Phase Single Maximum AC Output 5200 Watts Rated AC Output 4500 Watts Rated AC Current 37.5 Amps @ 120V / 18.8Amps@240V DC Output 12 volts Frequency 60 Hz Coil Resistance (W+10%) Run Time ~ 9.5 hrs Noise Level 73 dB CHARGING SYSTEM (Electric Start Models Only): Maximum Output 10 amps 12 volts IGNITION SYSTEM: Ignition System T.C.I (Transistor Controlled Ignition)