Rem Pitlick scored his first goal for the Canadiens (7-25-5), who have lost 13 of their past 14 games (1-10-3) and haven't won since Dec. 16. Cayden Primeau made 12 saves on 16 shots before being replaced at the start of the third period by Sam Montembeault, who made six saves.
"Changing the momentum a little bit," Montreal coach Dominique Ducharme said of the goalie change. "Sometimes just spark a team. We cannot say it was Primeau's] fault, but we wanted to see Montembeault in the third and see what would happen."
Schmaltz, who was moved up to the Coyotes' top line after playing on the fourth line during a 5-0 loss to the Colorado Avalanche on Saturday, set up Travis Boyd's ninth goal of the season at 5:19 of the first period for a 1-0 lead. Boyd has one more goal than he scored in his previous three NHL seasons combined.
"Obviously, we're not in the position we want to be in, but we still want to bring it every night and set the bar high and make sure we're not taking any nights off," Schmaltz said. "It may not be this year that we're successful in the standings, but we want to play the right way and keep building as an organization."
Larsson scored his fifth goal in six games off Phil Kessel's cross-ice pass to make it 2-0 at 8:18.
"We started really strong in the first and after we took the lead 2-0, maybe we slowed down a little bit there," Coyotes assistant Mario Duhamel said. "But besides that 10 minutes of that first, we came back strong in the second and third to shut them down."
Pitlick, claimed off waivers from the Minnesota Wild on Dec. 12, cut it to 2-1 at 15:11 after Jonathan Drouin stole the puck from defenseman
[Victor Soderstrom
along the boards and fed it to Pitlick.
"We're not going to give up on the on the season," Drouin said. "There's stuff you can build even though you're [among] the last teams in the League. We have young players, we have stuff we want to build for the next year, so we can't give up."