Revenge is on the mind of every Terrier heading into the biggest weekend of the young season. And while the weekend culminates in a clash against the nation’s best in undefeated University of Maine, the Boston University men’s hockey team isn’t getting ahead of itself.

After all, the No. 7/8 Terriers have some unfinished business to take care of Friday night when they go on the road to reclaim the pride-and dominance-UMass-Lowell stole from them last weekend.

“They smacked us in the face in our own building,” said junior forward Pete MacArthur. “We want to try to do the same thing right back to them.”

It wasn’t just the score that plagued BU (2-1-1, 2-1-0 Hockey East) in last Friday’s 2-1 loss to the River Hawks (2-2-1, 1-0-0). It was the attitudes on the ice-attitudes that have been hurting the team since its season opener-that led to the breakdown.

And while coach Jack Parker won’t know if the situation has been rectified until the Terriers hit the ice at Tsongas Arena tonight (7 p.m.), the team has come a long way in one week’s worth of practice.

“We had a grueling practice week,” Parker said. “I think they worked hard all week and we’ll see if they turned the corner. It seems like we’re on the right track at least.”

Intensity and competitiveness is key after both were lacking Friday night, as well as being assertive and controlling the puck, Parker said.

“Our big problem with Lowell is getting the puck out of the zone,” he added. “They did a real good job forechecking against us, and we didn’t move the puck well. I think the key to the game is how much time we spend in our zone as opposed to how much time we spend in their zone.”

So the Terriers will shuffle the roster and try a different scheme in tonight’s rematch, leaving no line untouched. Sophomore Jason Lawrence will take the place of Eric Thomassian as the Red Line’s right wing, joining MacArthur and assistant captain Kenny Roche.

“I like J-Lo as a player a lot,” MacArthur said. “He brings a lot of energy, he’s not afraid to get in there and get his nose dirty, and he’s the type of player that knows how to get himself open. I expect him to have a big night.”

Taking Lawrence’s place on the White Line is junior Ryan Weston, who will flank sophomore center Chris Higgins and defender-turned-right-wing Matt Gilroy. The two freshmen forwards, Zach Cohen and Luke Popko, will move up to the Orange Line and be joined by Craig Sanders, who is getting his first chance off the bench.

Ryan Monaghan will also make his season debut, playing on the fourth line with John McCarthy and Steve Smolinsky, making Thomassian and junior Brian McGuirk the odd men out.

Rookie Eric Gryba will also sit out, giving Kevin Kielt his first start of the season. Kielt will be paired with Tom Morrow on the third defensive unit, while the top two weekend pairs will be Sean Sullivan-Kevin Schaeffer and Brian Strait-Dan McGoff.

But no matter what the outcome of Friday night’s bash is, the Terriers face even stiffer competition Saturday, when they return to Agganis Arena to take on the No. 1 Black Bears (6-0-0, 1-0-0).

Maine is anchored by Ben Bishop’s 1.40 goals-against average and the nation’s second-best defense (1.50 goals per game)-a corps that nicely compliments the Black Bears’ second-ranked offense (4.83 goals per game). Maine has allowed just nine goals in six games, while senior captain Michel Lééveilléé racked up a Hockey East-leading 1.83 points per game (6-5-11).

But Maine’s Achilles heel could be in its penalty kill-six of the nine goals let up by the Black Bears have been power play goals.

“They’re penalty kill has not gone as well as it usually does, but they’re still pretty effective,” Parker said. “We still have to get scoring out of our first two lines and we gotta get scoring out of the power play.”

But BU has to careful too, because Maine also has the nation’s No. 2 power play, connecting more than once every four chances (27.3 percent).

“The penalties that are called in the league nowadays, special teams really does win games for you,” said MacArthur.

“We have to make sure we stay as best off the penalty kill as we can, but when we are on the penalty kill, we do a good job,” Parker said. “Special teams always is a big part of whether you win or lose.”

And though little is sweeter than handing an undefeated team-especially one in your own conference-it’s first loss, the Terriers won’t be satisfied until they even the score with the River Hawks.

“We can’t be a fancy team around here,” MacArthur said. “We have to start working hard, which has been BU’s M.O. for the last 30 years. That’s how we’re gonna win games again. Practice how you play, play how you practice.”

“The attitude of everyone is just we want to get back at Lowell,” Sullivan said. “We’re going to their building, so we’re gonna show them a thing or two.”