The engine is the power core of a chainsaw and determines, to a large extent, how fast the saw will cut. The Husqvarna 350 is equipped with a 50 CC engine that runs up to 3.1 horsepower. The two-stroke engine allows for 2,700 rpm idle speed and a maximum speed of 9,000 rpm. The Ignition system is manufactured by SEM, and spark plugs are model RCJ7Y, designed by Champion.