MODEL Model / Model Code EF12000DE / 7UX Primary I.D. Number 7UX-200101 SIZE AND WEIGHT: Physical Dimensions ( L x W x H ) 33.3" x 29.6" x 33.3" Dry Weight 327.8 lbs SERVICE LITERATURE: Owner's Manual LIT-19626-00-87 Service Manual LIT-19616-00-86 ENGINE: Engine Type 4-Stroke, OHV, Air-Cooled Horsepower 22 @ 3600rpm Bore x Stroke 80mm x 65mm Number Cylinders / Displacement 2 / 635cc Piston Skirt Clearance New / Max 0.012-0.051mm / 0.25mm Valve Clearance (cold): Intake 0.09 - 0.11mm Exhaust 0.09 - 0.11mm Oil Type Yamalube 4, 10W30 Capacity: Oil and Filter Change 1550cc (1.6 qt) Oil Change Only 1250cc (1.3 qt) Oil Filter Part Number YA2-61659-02-A0 FUEL TANK: Capacity 43L (11.4 gal) Fuel Type Unleaded Regular COOLING SYSTEM: Cooling Type Air Cooled CARBURETOR: Manufacture / Type Nikki / 8XL-00 Main Jet / Pilot Jet / Pilot Screw (Turns Out) #132 / #60 / 2 Idle rpm 3600 GENERATOR: Type Brush, Separate-Excitation, 2-Pole Phase Single Maximum AC Output 12000 Watts Rated AC Output 9500 Watts Rated AC Current 79.2 Amps @ 120V / 39.6 Amps @ 240V DC Output 19 amps 12 volts Frequency 60 Hz Coil Resistance (W+10%) Main Coil R-W 0.1W / BI 0.1W Sub Coil W-LGr 0.37W Exciter Field Coil Y-Y / 2.2W DC Coil N/A Rotor: Main Field Coil 4.1W Run Time ~ 10 hrs Noise Level 77 dB CHARGING SYSTEM (Electric Start Models Only): Battery: Model / Specific Gravity 12V32AH / 1.280 Battery: Charge Rate 3.2 Amps Maximum Output 14.5V @ 3600 RPM Charge Coil Color Code / W B-B / 0.2W IGNITION SYSTEM: Ignition System T.C.I (Transistor Controlled Ignition) Ignition Timing 26.5 deg @ 3600 rpm Spark Plug Type NGK BPR6ES OR Champion RN9YC Spark Plug Gap 0.7 ~ 0.8mm Spark Plug Cap W 0W PrimaryW / Secondary W 1W + or - 20% / 7.9kW + or ­ 10% TORQUE VALUES: Flywheel Nut M18: 9m-kg(65 ft-lb) Cylinder Head M10: 3.8m-kg (28 ft-lb) Spark Plug M14: 2mkg(14 ft-lb) Crankcase Cover M8 1.8 m-kg(13 ft-lb) Rotor Bolt M8: 2.4 m-kg (17 ft-lb) Connecting Rod M8: 2.5 m-kg (18 ft-lb)