Loncin Walk Behind Engine - Shaft B. Shaft Length (mm): 62. Shaft Diameter: 7/8 (22.2mm). Displacement（cc）: 139 Bore x Stroke (mm): 65×42. Net power: 2.4 KW/ 3600 RPM. Net Torgue: 7.5 NM/2500 RPM. Starting System: Recoil. Lubrication system: Splash. Air filter: Sponge. Automatic Choke. Net weight (kg): 8.5. Product Dimension (mm): 325×316×245.