Brand: Yamaha Motor Model Number: F250XB Engine Type: V6 Four Stroke Displacement: 4.2L (254 ci) Bore And Stroke: 96 x 96mm (3.78 x 3.78 in) Full Throttle Rpm Range: 5000-6000 Alternator Output: 50 - 70 Amp Compression Ratio: 10.3:1 Fuel Induction System: Electronic Fuel Injection Weight: 250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs) Recommended Fuel: Octane 87 Recommended Oil: Yamalube 4M (See owner's manual) Recommended Fuel Filtration: Yamaha 10-Micron Fuel/Water Separating Filter (external) Standard Feature Exhaust System: Through Propeller Ignition: TCI Microcomputer Starting System: Electric Oil Capacity: 6.7L/6.4L Command Link System: Compatible Cooling System: Thermostatic Control Gear Case Rotation: Standard (RH) Gearcase Ratio: 1.75:1 Power Trim & Tilt: Yes Shaft Length: 25" Thermostat Controlled Cooling System: Standard Feature Yamaha Propellers: Optional Equipment Multi Function Gauges: Optional Equipment Warranty: 3 Year Limited Pleasure Boat - 1 Year Limited Commercial Year: Current Manufacturer Item Number: F250XB Horsepower: 250