High powered 3.5 hp X-Torq engine increases torque over a wider rpm range and for maximum cutting power. Responsive workmate for all cutting conditions. Ergonomic for big jobs. Features air injection. Quick release air filter makes it easy to remove the air filter for cleaning or replacement. Fuel pump and combined choke/stop control allow for easier starting and reduces the risk of engine flooding. LowVib reduces fatigue. Handle is separated from the engine and cutting equipment with steel springs that reduce vibrations. Heavy duty steel springs are resistant to fuel, temperature and UV light. 12 lbs.