Felling marks - Distinct felling marks for better felling precision. * X-Torq - Deliver lower fuel consumption and reduced exhaust emission levels in accordance with the world´s most stringent environmental regulations. * Combined choke/stop control - Combined choke/stop control allow for easier starting and reduce the risk of engine flooding. * Air Injection - Extends the interval between filter cleaning, improving efficiency and increases engine life. * Side-mounted chain tensioner - Easier access to chain tensioning device.