"In the second half, coach told me to be more aggressive so I looked for my shot more," he said.
But Kansas restored a 10-point lead built on controlling the paint, this time with a 3-pointer and a tomahawk dunk on a breakaway by McLemore and a three-point play from Johnson.
Johnson, who picked up three fouls in just three minutes of playing time in the first half, gave Kansas its biggest lead at 68-54 with a 3-pointer from the corner with just under 7 minutes left.
Travis Releford had 16 points for the Jayhawks, while Jeff Withey had 12 points and eight rebounds.
McLemore didn't score again after going to the bench with his fourth foul with 8 minutes remaining.
"We had chance to seal the game, but we made some bonehead plays late," Releford said.
Kansas pushed out to a 10-point lead early by dominating around the basket. McLemore's first basket was the first outside the paint as the Jayhawks scored 34 of their 40 first-half points from inside while shooting 69 percent.
Withey put Kansas ahead 29-19 with a turnaround shot that had McGary shrugging at a teammate and saying, "I'm trying."
McGary wasn't having nearly as much trouble on the offensive end, leading the Wolverines with 11 points and five rebounds in the first half. He picked up where he left off in the third round against Virginia Commonwealth, when he had season highs of 21 points and 14 rebounds.
Michigan pulled within 40-34 at the half when Nik Stauskas hit a 3-pointer and had chance for a four-point play when McLemore bumped him on the shot. But he missed the free throw.
No matter. In the end, Burke was Fab-u-lous and the Wolverines are one win away from the Final Four.