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Beskrivning av CYLINDER HEAD RACING
Cylinder Head Racing for Yamaha Cygnus, BWs 5ML 4V4-valve racing cylinder head for use on big bore cylinders for Yamaha 5ML engines The cylinder head features stiffer valves and springs The inlet valves have a diameter of 23mm and the exhaust valves 21mm Inlet connection: 27mm, exhaust has a cross section of 26mm Not for 125cc original cylinders.
