The quarter-final match at Macclesfield ended 0-0 after 90 minutes, so it went into extra time.
Steve Brackenridge put the home side ahead, but Jevons struck twice in the second period of extra time to put City into the semi-finals with a 2-1 win.
The Reserves have now make it 9 wins in succession in all competitions - having been defeated just twice all season - and are currently top of Division One East.
City line-up: Musselwhite, Edwards, Holt, Burton, Chapman, Strong, Williams, Philpott, Donaldson, Jevons, Pete.