Hi all! I've been lurking on this forum for years, poring over everyone's builds and soaking up as much information as possible. I have a background in bicycle repair, but am very new to working with small engines. I've been working on my build using the Skyhawk aluminum frame with the integrated gas tank built into the top tube and a dragon fire 66cc/80cc 2 stroke China girl. I've found that the petcock that was included with the engine kit doesn't thread into the skyhawk tank. I'm pretty sure the petcock is an M10-1.0 but can't determine the female thread in the frame's tank. Has anyone had this issue? Any and all insights are welcome! Thanks so much!