[video=youtube;fZkO_KdSJTo]http://www.youtube.com/watch?v=fZkO_KdSJTo&[/video]
- Designed to be light and compact, extremely stingy on fuel, and to conserve resources during manufacturing, the all-new 670 cc, liquid-cooled, inline-twin engine used in the NC700XA incorporates numerous advanced and patented technologies.
- The engine’s inline cylinders are canted forward by 62 degrees to help create a low overall centre of gravity for nimble, confidence-inspiring handling, and also to create room for a convenient central storage area where the cylinders and fuel tank would typically be.
- To give the engine a satisfying and distinctive sound and feel, engineers thought way outside the box. A 270-degree crankshaft combined with a uniaxial primary counterbalance shaft creates a pulse much like that of a V-twin. The intake-port layout inside the cylinder head was carefully designed to create an intentional interference between adjacent ports, which results in subtle combustion variations. In addition, the timing for the opening and closing of the intake valves was set separately for each cylinder. The result? An engine that lets you know what it’s doing every time you twist the throttle.
- To ensure strong acceleration, ease-of-use in the city, and a relaxed character on the highway, the engine delivers exceptionally strong low-rpm performance. The unique design creates a muscular, easy-to-use powerband not unlike that of a big-bore cruiser.
- The six-speed manual transmission complements the powerband by using wide gear ratios – no need to be constantly shifting up and down to maintain strong performance.
- Through the use of friction-reducing technologies, integrated components (such as running the oil pump using the counterbalance shaft and the water pump using the camshaft, which reduces the number of shafts required), precise PGM-FI electronic fuel-injection and efficient combustion, the NC700XA engine delivers exceptional fuel economy.
- The engine’s efficient use of fuel enables the use of a smaller-volume, more-compact fuel tank that still allows ample riding range while giving engineers extra freedom to re-think the optimal placement of other components.
- The exhaust catalytic converter sits directly beneath the exhaust ports and is activated early when the engine starts. This design lets the combustion gas pass through the catalyst while it is at its hottest, thereby maximizing purification efficiency. In fact, emissions are half of what is required by the strict Euro 3 emissions standard.
