adjusting the oven pilot light?

your running out of gas or your thermocouple is burnt out.

You have not given enough information really.

Ovens do not usually have pilot lights these days. It could be a defective vapour pressure flame supervision device or the thermostat may have gone out of calibration, If the oven burner lights but remains low. In either case, you need a qualified person to repair, and to diagnose in the first place. Don't mess with it yourself, because if you have, or cause, an accident, your insurance WILL NOT pay out, because you are unqualified.

If the cooker was fairly inexpensive, and if I am right in my guesstimation of the nature of your problem, it may be better to replace the appliance, as the repair could be fairly expensive.

You need to replace the little gas governer that the pilot light is connected to.