| 摘要 |
PURPOSE:To obtain an engine cooling device for a motorcycle which shortens a wheel base and reduces limitation of arrangement of an exhaust gas pipe by a method wherein a radiator for circulating cooling water for an engine is mounted below the right and left seat rails at the rear part of a frame, air exerted resultant from running guided from the front part of the frame to the radiator through an air guide duct, and an exhaust duct is arranged on the rear side of the radiator. CONSTITUTION:A radiator 6 is mounted on the right and left support tubes 3 of right and left seat rails 2 at the rear part of a frame 1 and coupled to an engine 8 through a hose 9 to circulate cooling water. An air guide duct 11 longitudinally extends between the upper side of the engine 8 and the under side of a fuel tank 10 and air is guided to the radiator 6. An exhaust duct 12 is arranged to a seat cowl on the rear side of the radiator 6. |
