I was rebuilding an old Mikuni TM Flat Slide carb. It was running fine, but float needle was leaking a bit. When I took out the pilot jet, it unscrewed, but was stuck in the hole. I pulled it out with pliers. It was "compressed" at the upper end (where there is a wide bore and some side holes. It was compressed like accordion at the side holes. I replaced it with new jet, but when I screwed it in, the same thing happened to the new one. Obviously, the tip was not clearing the bottom (top) of the hole. Anyhow, I figured that it was running fine before, so I removed the squashed end and reinstalled. I figure the gas metering (jet bore) is done at the bottom end (near screw head). Bike is apart for other work, and it will be a while before I can test. Think it will work? What is purpose of the tip of the pilot jet (with wide bore and holes in side)?