| 摘要 |
An engine intake system including an air cleaner with an intake noise-damping box. The system is easily switchable from a noise-damping state to a non-noise-damping state when high output of the engine is regarded as important. The intake noise-damping box is attached to one side wall of an air cleaner. It is formed by a substantially rectangular air intake frame, the inside of which functions as an air intake open to the inside and the outside of the air cleaner. A passage former can be attached and detached to/from the air intake frame. When attached, the passage former forms an air passage extending in the longitudinal direction of the air intake frame, and communicating with the inside and the outside of the air intake frame at the air intake. |
