Originally Posted by Yellow Pig
Did you go OEM or aftermarket piston kit?
Its fun to ask for advice on ADV,if it was me I would search for a really good KTM mechanic and have him look at the whole top end,you've gone to all the trouble of taking it apart,might as well get it done right.
You dont want to guess at it.
How much oil was it really going through? Were you measuring what came out at oil change or checking oil level through the window?Are you 100% sure the leakdown test was done right? People sometimes can mess that up if they dont do it all the time.
From here the ring gaps look nice and tight,bore looks perfect. Replacing a (probably) good piston/rings may be just tossing money away. Internet hype may say you need an aftermarket piston,many get along for a very long time on OEM parts,some even finish the Dakar race on them.