Engine Type V6 Displacement 4.2L Bore x Stroke 96 x 96mm (3.78 x 3.78 in) Prop Shaft Horsepower 300hp at 5500 rpm Full Throttle RPM Range 5000 ~ 6000 rpm Alternator Output at W.O.T. 50 – 70 Amp Compression Ratio 10.3:1 Fuel Induction System EFI Weight † 250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs) Recommended Fuel Octane 89 Recommended Engine Oil Yamalube® 4M (See owner’s manual) Recommended Fuel Filtration Yamaha 10-Micron Fuel / Water Separating Filter (external) C.A.R.B. Rating 3-Star Exhaust Through Propeller Intake 24 Ignition TCI Microcomputer Spark Plug LFR6A-11 Alternator Output 50 – 70 Amp Starting System Electric Lubrication Wet Sump Engine Oil Capacity 6.3L/6.0L