Intake apparatus of engine for outboard motor

An intake apparatus of an engine for an outboard motor in which an intake manifold, a throttle body coupled to an upstream end of the intake manifold and an intake silencer box coupled to an upstream end of the throttle body are arranged at one of right and left sides of an engine block which is configured such that an axial direction of a cylinder coincides with a front and rear direction of the outboard motor,

• wherein the intake silencer box comprises a main body part which has a first air passage configured to guide air for combustion in the axial direction of the cylinder and having a downstream end coupled to the upstream end of the throttle body, and a cover part which has a second air passage having a downstream end coupled to the first air passage and an upstream end is opened to an outside, and
• wherein an air filter element arranged on a plane orthogonal to an air flowing direction in the first air passage and interposed between an upstream end of the first air passage and the downstream end of the second air passage is fixed to a mating surface of the main body part and cover part of the intake silencer box.