I need to light the pilot on a payne model 125u-19a. I can find the pilot/on, but cannot figure out where the pilot nipple is inside the furnace. Can you direct me?

If you know this little about a gas furnace,it would be much safer for you to have someone that knows how to come and show you as they light it for you,, watch very,very carefully

Good answer. Some pilots are located in very hard to get to places. There is most likely a cover you can remove to make the job easier.