Rough Restart

my slant has this issue but not quite to a stalling extreme. hot starts it runs rough till i rev it then its fine.

like has been said before about this piss... i mean gas... evaporates in the float bowls. also maybe ur not getting enough fuel, i.e the fuel line is to small or not enough pressure/pump(flow).

what engine/specs, elect or mech fuel pump, stock or upgraded fuel system?