cylinder head with 3 valves 2 inlet valves with separate intake ports, one exhaust valve. Actuation of the valves (fine springs ensure easy actuation of the valves). Roof-shaped combustion chamber with lateral spark plugs. description ordernumber 1200 see also: in-line injection pump with RQV flyweight governor in-line fuel-injection pump with vacuum governor in-line pump with RSF flyweight governor Cylinder head with piezo injector