I have a 30" built in Jen-Air oven and want to convert it to LP gas. Is there an orifice hood and an air shutter for the broiler and another one for the oven? We can only see the one for the broiler. We already switched the regulator to the LP gas position and tightened the orifice hood visible near the broiler but there is a whole lot of gas coming out still, and a very yellow flame. Also there is an internal gas shut off valve near the regulator. Thank you