Since there is an existing thread, I'll ask my question here.
I just got a Time Sert drain repair kit (1015A) to install in my KLX450. I did a trial installation on a set of KX500 cases sitting on my bench. The toughest part was drilling the hole. The bit kept biting to much metal and stopping.
Now on to the 450 which is not on the bench but still in the bike. I've seen recommendations to keep the drill bit full of grease and to clean it often. OK. But could ya / should ya flush the transmission to make sure that there are no shavings inside? If so, what would you use?
Which brings up another point. On the 500 cases, the insert sticks up inside by about 1-2mm. That much oil, at the bottom where all the dirt would settle, won't drain. I'll grind it down since the cases are bare but on the 450, I guess I'll need to measure and fit it first.