oven burner

Burners work fine. Broiler works fine. Oven doesn’t light because no gas.
I tap on the oven regulator and oven gets gas. Can hear it and it works.
Your opinion please anyone. Shut off oven and have to repeat the same procedure to get it to work.

You have a weak bake igniter, a very common problem. The igniter needs to draw at least 3.0 amps through the gas valve for it to work as designed. If the igniter gets weak and does not draw that current, it may not open, only open partially or take a very long time to open. You can verify its failure by measuring the current draw with a clamp on ammeter. The correct igniter for your model is available below.

http://www.appliancepartspros.com/whirlpool-flat-style-oven-12400035-ap4012072.html