SADDLE TYPE VEHICLE

摘要

A secondary air supply system is arranged efficiently and compactly, in a V-type engine including a front-side cylinder and a rear-side cylinder. A motorcycle includes an engine having a front-side cylinder and a rear-side cylinder with an air cleaner being disposed on the upper side of the engine. A secondary air supply system has a reed valve provided between the air cleaner and an exhaust passage of the engine and by which secondary air is supplied into the exhaust passage of the engine. Intake ducts for guiding air into the air cleaner are connected to left and right side surfaces of the air cleaner. The reed valve includes a front-side reed valve used for the front-side cylinder and a rear-side reed valve used for the rear-side cylinder.

主权项

1. A saddle vehicle comprising:
a body frame; an engine mounted on the body frame, the engine including a front-side cylinder directed toward a front side of the vehicle and a rear-side cylinder directed toward a rear side of the vehicle; an air cleaner disposed in a space defined between the front-side cylinder and the rear-side cylinder on an upper side of the engine; and a secondary air supply system having a reed valve between the air cleaner and an exhaust passage of the engine, the secondary air supply system adapted to supply secondary air from the air cleaner into the exhaust passage of the engine or to stop the supply of the secondary air; wherein an intake duct for guiding air into the air cleaner is connected to a lateral side surface, extending across the width of the vehicle, of the air cleaner; the reed valve includes a front-side reed valve used for the front-side cylinder and a rear-side reed valve used for the rear-side cylinder; and the front-side reed valve is disposed at a front portion of the air cleaner, and the rear-side reed valve is disposed at a rear portion of the air cleaner.