Gasoline Stove

shut the valve and screw the oil cap tight. Pump gas into the gas tank with the lever until you can feel the pressure, but never over pressured.
turn the valve lever anticlockwise to emit a bit of gas and shut it again.
use open flame to ignite the  for preheating about 30 seconds for gasoline.
when a whir is heard, open the valve steadily to the firepower needed.
after closing the valve, when the flame is small enough, just blow it out in order to keep the stove clean.