MOTORCYCLE CYLINDER HEAD WITH IMPROVED VALVES, VALVE GUIDES, DISCHARGE PORT AND COMBUSTION CHAMBER

摘要

The utility model discloses a two-valve motorcycle cylinder head with improved valves and combustion chamber, the combustion chamber being defined by an 8-shaped concaved depression, said depression containing therein the spark plug hole and the head of said intake valve and exhaust valve wherein said intake valve and exhaust valve having a head diameter of 25-35 mm and 21-31 mm respectively.