Saddle-type vehicle including an exhaust secondary air valve

摘要

To provide an exhaust secondary air system intended to shorten the length of secondary air feed pipes connected to an exhaust secondary air valve thereby making compact the exhaust secondary air system including the secondary air feed pipes, and also to cool the exhaust secondary air valve and the secondary air feed pipes with running wind. A saddle-type vehicle includes a main frame extending rearwardly from a head pipe; a down frame extending downwardly from the head pipe; an engine disposed under the main frame and behind the down frame; and an exhaust secondary air valve, connected to a secondary air feed pipe, for feeding secondary air to an exhaust passage of the engine via the secondary air feed pipe; wherein the exhaust secondary air-valve is mounted on the down frame.