Youngstown’s Mike Regush scored the only goal of the first period at the 6:56 mark.
The Phantoms added two more goals in the second period, from Tommy Parrettino (1:16) and Matthew Barry (5:28).
The Lumberjacks finally got on the board with 18 seconds remaining in the game with a goal from newcomer Vincent de Mey, who was assisted by Clayton Phillips and Egor Afanasyev.
Muskegon lost despite outshooting Youngstown 30-20. Phantoms goalie Ivan Prosvetov got the win.
The Lumberjacks, now 2-4 on the season, will come home to host the Phantoms on Saturday at 7:15 p.m.