An exhaust apparatus of an outboard motor equipped with a four-stroke engine includes an exhaust pipe having a cylindrical shape and being connected to an exhaust passage of an engine holder, wherein the exhaust pipe is disposed in an exhaust passage of the exhaust manifold in a manner being erected upright in parallel to the crankshaft, and the exhaust pipe has an upper end opened in an upper portion of the exhaust passage and a lower end supporting the cylinder block, and the exhaust manifold and the exhaust pipe are provided with a gap therebetween in a plan view acting as an exhaust collection space adapted to collect exhaust gas from the exhaust manifold.
Exhaust apparatus of outboard motor
2018-07-31
Patent
Electronic Resource
English