oven took long time to light

shut off gas at tank, pulled stove out from counter area to gain acess to back, removed oven door removed removed screws holding igniter unit in place, i then removed the stove rear panel to get at the wiring for ignitor,remoded old part returned to front and installed new part, checked voltage then re-connected new wires, turded gas back on and tested oven, oven came on less than a minute, put rear panel on stove put door back on and put stove back into counter area, stove works like new.