vipor lock...I vaguely remember once a while read it before.
for engines that have leaks of gas into the cylinder either
from the fuel injector or carburetor. it will create vipor lock
for next start since the gas vipor is too condense that the
amount of air is not enough to burn it. :(
the more you crank, the more gas flashed into the cylinder and
eventually preventing the start of engine.
need to wait a few times after the gas escape from the cylinder
into atmosphere. or press gas pedal down t