Pat Ryan threw three touchdown passes, including a 44-yard flea-flicker to rookie Bobby Humphery, and Mark Gastineau recovered a fumble for a touchdown as the New York Jets defeated the Kansas City Chiefs, 28-7, today.

Ryan's other scoring passes were 16 yards to Mickey Shuler and 39 yards to Cedric Minter. Kansas City (4-4) scored in the final period on Bill Kenney's seven-yard pass to Ken Lacy.

The Jets (6-2), playing without AFC rushing leader Freeman McNeil and wide receiver Wesley Walker, resorted to trickery early.

On their first possession, Ryan handed to Johnny Hector, who started around left end, wheeled and passed to Ryan, who threw to Humphery going down the right side. It was Humphery's first pro reception.

Later in the period, Jets linebacker Rusty Guilbeau, from field-goal formation, dropped a pass in the end zone.

Russell Carter's first pro interception, at the Kansas City 39 with 1:53 left in the first half, set up Shuler's sixth touchdown this season.

Early in the second half, Kenney dropped back to pass from his 16 and rookie defensive tackle Tom Baldwin knocked the ball into the end zone, where Gastineau recovered.

Kenney was making his first start after breaking his thumb in training camp. He was sacked four times, twice by Gastineau, who leads the league with 14.