fuel tap flow

I need to check if my fuel tap is working properly
does anyone know how can i measure if the flow is good
for example i can take of the petro pipe from the carb side and let fuel flow in a bottle.
what is the rhythm of the flow so I will say my tap is working properly?
cheers,
nassos
does anyone know how can i measure if the flow is good
for example i can take of the petro pipe from the carb side and let fuel flow in a bottle.
what is the rhythm of the flow so I will say my tap is working properly?
cheers,
nassos