Just want to share with you how I fixed my petcock which is leaking in the dial itself
I'm pretty sure that you already know how to drain and removal of the petcock so just focusing on the petock, all you got to do is pull the knob outward so that you can pull out the whole thing
Parts of the Petcock
Here is the part that is causing the problem:
I think there is a "repair kit" that is being sold but unfortunately I dont know which bike is compatible so
The other side of that above picture is this
Its the same so what I did is just put it the other way around and then I put some gasket in the white plastic ring
After that, I reassembled the petcock and put some instant glue to hold it.
Just some notes, when you apply the instant glue, make sure you are pressing the dial firmly so that the white plastic ring and the gasket will be tightly in its place.
Hope this help you guys (somehow)