System for supplying secondary air in a motorcycle's exhaust system on a forced-ventilated engine includes a secondary air conduction valve on the exhaust side while encasing a cylinder head with a wind-cooler cover.

摘要

A secondary air valve (120) formed as one unit by a switching valve and a guiding valve fits next to an engine's cylinder block (110). Air picked up through an air cleaner feeds through a first flexible tube (130) into the secondary air valve and is passed on via the guiding valve inside the secondary air valve. This air then flows into the exhaust opening via a second flexible tube (140) and a pipe (150).