AIR VENT STRUCTURE FOR SUBSIDIARY FUEL TANK OF AN ENGINE

摘要

A subtank (89) provided on a side wall of an engine block on an outboard motor temporarily stores a fuel supplied from a fuel tank not shown and provided on a hull, and pressurizes the fuel to a high pressure to deliver it to a fuel injection valve (94). An upper space in the subtank (89) is connected to an inner space of an intake silencer (76) through two air vent pipes (L7, L8). Even when a fuel vapor liquefies in the intake silencer (76) at the time of engine suspension, the liquefied fuel is caught at a bottom of the intake silencer (76) having a large volume with no possibility of flowing out.