This is an excerpt from this Honda press release from July, 2005. Makes for interesting reading, I think, especially in the current scenario, no?
Average fuel-efficiency for Honda motorcycles in 2004 represented an increase of 34.2% over 1995 figures thanks to the implementation of 4-stroke engines and fuel injection for smaller engine models.Related Links
Honda is now developing the world’s top level low friction engine for the 100cc to 125cc class – the largest volume segment in the world. This achieves improved combustion efficiency by introducing two spark plugs while significantly reducing engine friction. With this new innovation, Honda aims to improve fuel economy for 100cc to 125cc engines by 13% compared to the level of 2005. In addition, Honda will adapt the Variable Cylinder Management (VCM) system technology already in use in passenger car engines for use in motorcycle engines. VCM delivers both higher fuel efficiency and superior performance. By deploying VCM technology on larger models to provide 4-stage control (2-cylinder/2-valve; 3-cylinder/2-valve; 4-cylinder/2-valve; and 4-cylinder/4-valve) over the number of combustion cylinders, Honda aims to increase fuel-efficiency by 30% compared to the level of 2005.