Hello, the thread must always be well adjusted, if no gas passes when there is another problem, the body of the pilot (gas injector) is attached to a piece that also holds the spark plug, (Porcelain where the spark comes out for ignition ) and there is also the thermocouple or safety valve. The pilot is bronze and the internal light of it is very little, I would say that the size of the tip of a needle or pin, but enough for the gas pressure to be released and allow it to remain on, do I unscrew it completely, I uncover it and place it again ?, it is usually covered with impurities that are dragging the gas, in the shops that sell spare parts, some needles are sold to uncover that are called calisuares, they come in several diameters, it is the most indicated for that task, the The difference between a calisuar and a needle or household pin is that the calisuar in almost its entire length has four very sharp faces and vertices that allow removing dirt or even increasing the diameter of the pilot's hole by eating the metal of the pilot, they are not expensive, If you are inclined by this means, request it by explaining to the person that it is for a pilot injector of that stove and they will give you the corresponding diameter, you must be very careful since if you enlarge it by dem You must replace it with a new one. I hope I have been helpful, but always remember that every thread should be adjusted well, not to the point of breaking anything but should not be loose, it can cause an accident. Good luck.