Multi-Port Programmed Fuel Ignition: Powerful performance. 3-Way Cooling System: Cool-running durability Engine Type 4-Stroke DOHC 4 Cylinder/16 Valves Displacement 2,354 cc (144 cubic inches) Bore & Stroke 87 mm x 99 mm (3.4 x 3.9 inches) Full Throttle RPM Range 5,000-6,000 RPM Rated Power 150 HP @ 5,500 RPM Cooling System Water Cooled Fuel Delivery Programmed Fuel Injection Ignition System MicroComputer Programmed Starting System Electric Exhaust Through Hub Lubrication Wet Sump Trim Range -4 to +16 Tilt Range 72