... .Imported carburetor,coil and chain 3.Tool-less chain tension 4.105cc, 4.8 kw engine 105CC POWERFUL CHAIN SAW for HUGE ... : Engine specificationEngine TypeSingle Cylinder, Two-Stroke, Air-cooling Cylinder Displacement105.7 ccPower4.8KWIdling speed2000 rpmRelevant Speed8000 rpmCylinder Diameter58mmCylinder Stroke40mmCylinderChrome Plated, Stress ...