MANHATTAN, Kan. (AP) -- For more than 100 years, they were bitter rivals, competing every autumn for statewide bragging rights.

	David Allen left in the second quarter after injuring his foot.

But now it's getting hard for Kansas State (No. 9 ESPN/USA Today, No. 10 AP) even to take Kansas seriously.

Perhaps lacking full concentration, the ninth-ranked Wildcats set a team record with 18 penalties for 162 yards Saturday but still won 50-9.

"Last week at Texas I think we were a lot more enthusiastic than we were for this game," said defensive end Monty Beisel, a Kansas native. "When you beat a team by 50 every year, it's tough. We knew we had a tough game last week at Austin. This week we knew if we played OK, we'd win."

Jonathan Beasley threw for two touchdowns and rushed for three as the Wildcats (5-0 overall, 3-0 Big 12) cracked the 50-point barrier against Kansas (2-4, 0-2) for the second year in a row.

"I am not pleased with our performance," said Kansas State coach Bill Snyder. "I don't want to take away from the very good things that many of our players did."

The Wildcats, who have won 18 straight Big 12 regular-season games, wracked up 101 yards in penalties in the first half and early in the third period, despite holding a 36-9 lead over the outmanned Jayhawks, had more penalty yards than rushing yards. They finished with 208 yards on the ground, 46 more than their penalty total.

"We did some things early that could have given us a chance, but K-State's just too good of a football team," said Kansas coach Terry Allen. "In a matter of two or three plays, they would throw a long pass and score a touchdown."

The Wildcats' 18 penalties broke the record of 17 set in 1990. Before a crowd of 52,254, largest ever to see a sporting event in Kansas, they erased the 49-year-old record of 135 penalty yards.

"A lot of the penalties came on third and long. It was very frustrating," said linebacker Ben Leber. "We didn't agree with a lot of the calls and that made it more frustrating."

With running back Frank Murphy already sidelined, the Wildcats started David Allen, their record-breaking return specialist whose touchdowns on punt returns keyed comeback wins the previous two weeks at Iowa State and Texas.

But Allen left in the second quarter with what appeared to be a foot or ankle injury, leaving the offensive load mostly on Beasley, who had been benched in the second half against Iowa State.

Beasley hit 10 of 17 passes for 279 yards, including touchdown strikes of 88 and 36 yards to Quincy Morgan, who totaled 192 yards on just five catches.

"Me and Aaron (Lockett), we're speedy receivers," said Morgan, "If we run our routes, we feel like we can get open deep."

Morgan fell just 14 yards short of the school record.

"Quincy Morgan made some plays that beat us," Allen said. "Quincy Morgan took the wind out of our sails."

Snyder said Murphy had undergone surgery for an ankle injury and would be out at least one more week, but that Allen would return next week against Utah.

Less than five minutes into the game, Beasley, scrambling from pressure, flipped the ball to Morgan, who went 88 yards into the end zone.

After Jamie Rheem's 28-yard field goal made it 10-3 in the final seconds of the first quarter, the Wildcats parlayed two turnovers and a bad punt into three more scores for a 30-9 halftime advantage.

Joey Pelfanio, obviously trying to kick away from Allen, shanked a 26-yarder and Beasley, on the ensuing play, connected with Morgan for 46 yards to the 2, setting up the first of the quarterback's three 1-yard TD runs.

On Kansas' next possession, Darren Howard intercepted Dylen Smith's pass and Beasley, on the next play, found Lockett over the middle for 43 yards to the 1. Then the junior quarterback sneaked over for his second touchdown to put the Wildcats ahead 24-3.

Michael Chandler's 35-yard reception fueled a nine-play, 80-yard touchdown drive for Kansas a few minutes later, with Moran Norris diving across from the 1, making it 24-9.

Defensive tackle Mario Fatafehi recovered Mitch Bowles' fumble on the Kansas 23 a few minutes later, and Joe Hall, the Wildcats' 300-pound fullback, bulled into the end zone on fourth-and-3.

The Wildcats marched 72 yards in six plays in the third period, taking a 36-9 lead when Morgan, standing all by himself in the end zone, gathered in Beasley's 34-yarder.

With 2:34 left in the third, Beasley made it 43-9 with a third 1-yard scoring run, capping a 12-play, 67-yard drive.

Kansas' Joe Garcia, who kicked a 21-yard field goal in the first period, missed from 49 yards in the third and had another blocked in the fourth.

Pelfanio's punt was blocked by Adrian Beard with 1:20 left in the third, giving Kansas State the ball on the Kansas 27. A few minutes later, Johnno Lazetich scored on a 1-yard run.