Sorry I looked High and low for chat that dealt with this but could not find anything.
I did and oil change this week and upon replacing the drain bolt I noticed that it would not tighten. I took the bolt out and there was what appeared to be some of the thread from the drain hole on the bolt.


This has never happened before and I was very careful when reinserting the drain bolt (did it up by hand initially to ensure no cross threading).
I then put the bolt back, still not tightening up. I filled up with oil and ran the engine for 5 mins and no oil came out from the oil drain hole. I knew that it would not be long before I got some drips and sure enough, today after riding home there was a small leak from the oil drain hole (oil on the drain bolt).
Really need some help please, what can I do to fix this? I read of some thread repair kit on the net but not sure how reliable a fix this would be? Or am I looking at replacing the crankcase???
Please help.
Thank you.