Cylinder head without SLS 50cc for 4-stroke China scooter GY6 139QMB

CItomerx cylinder head without secondary air system (SLS) 50cc DESCRIPTION: If valve springs are broken, valve stems are no longer completely tight, or the cylinder head or valve no longer seals properly, it is usually cheaper and, above all, easier to replace the entire cylinder head. Are you looking for a new cylinder head for your scooter? We offer you an affordable replacement here. TECHNICAL DATA: - 4-stroke cylinder head for 50cc scooters with engine identification GY6 139QMB / QMA - without secondary air system (SLS), i.e., if your scooter has a secondary air system, this will be deactivated and the connections blinded if necessary; this reduces noise during cold starts and generally slightly increases performance - including valves, valve stem seals, valve springs, etc. (Camshaft and rocker arms are not included) SCOPE OF DELIVERY: ? 1x cylinder head