Alright, this is not for my ZX6R, it's for my EX500. I changed the oil today and overtightened the drain plug a little too much and it came loose. I pulled out the drain plug and there was metal carved right in between the threads so I damaged the thread in the oil pan. I tried using teflon tape but it is still dripping oil very very slowly. So, for now, I wrapped up the entire bolt and washer with teflon tape to stop the oil from leaking. Any advice?