List Size Diameter Valve Suzuki

how to measure the diameter of the valve

The following data of the valve diameter Suzuki.

     Satria FU = 22/19 mm
     Smash = 25/22 mm
     Shogun 125 = 25/22 mm
     Shooter =
     Nex =
     Let s =
     Spin 125 = 25/22 mm
     Skywave 125 = 25/22 mm
     Thunder 125 = 25.5 / 23 mm
     Inazuma 250 =