Paying utilities vs not paying utilities

[Louie E.]

Good day.  When does it make sense to make tenants pay utilities.  I have this 4-plex on contract and the current tenants have the utilities included in their monthly rent.  2 are paying 650 and the other 2 paying 550.  Which in this case is not cashflow positive.  The quickest way is to increase rent by $50 on the new lease or the tenants pay utilities, divided equally of the 4 of them.  Only 1 tenant live in each unit.

Thank you.