Various Valve System at Motor 4 stroke

4 stroke motorcycle valve system serves to regulate entry and exit of the gas in the cylinder block and in the combustion chamber. Completion of "system valve 4 stroke motors" continue, in order to get fuel efficiency and improved engine performance. Currently, many models of motorcycle 4 stroke valve system. However, generally speaking valve system 4 stroke motors can be divided into the following:
1 Over head valve (OHV)
This type is characterized by the location of the camshaft located in the engine block.

2.a. Single Over Head camshsaft (SOHC)
This type is characterized by the location of the camshaft is located above the cylinder head.

2.b. Double Over Head Camshaft (DOHC)
This type is characterized by the location of the camshaft is located above the cylinder head with camshaft number two.

Similarly, about the kind of - kind of valve system on the 4 stroke motors.

3 desmodromic

This type is owned by a Ducati hallmark characteristics using soft valve spring even without spring.