Sept. 27 - Afternoon game (78°, clear, with no wind) in Provo (37,152).
For the first time of the season, BYU's offense blew out of the starting blocks in the first period of the game and put the game out of reach with a 21-0 lead.
Eric Lane put the Cougars out in front on their first drive of the game by scooting five yards around the end for the score.
Jim McMahon then went to work and connected on two of his four touchdown passes of the day to Lloyd Jones and Matt Braga.
Before he was finished for the day, McMahon had completed 25 of 42 passes for 339 yards-his third straight game of passing for 300 or more yards.
Defensively, the Cougars played strong in the first half but seemed to tire in the second stanza, allowing the Forty-niners to score 19 points.
The 497 yards of total offense churned out by the Cougars was their best pertormance up to that time.
McMahon's remaining two touchdown passes were good for two and 13 yards, and they were thrown to Bill Davis and Eric Lane respectively.
In the defensive backfield, BYU came up with four timely interceptions to stall Long Beach drives.
BYU now 3-1.