Originally Posted by Jdeks
Guys, thanks for your advice. In the end, I did neither - went with the bored out cam chain bolt option (as per cpmodem).
All your (very valid) cautions about debris made it seem like too much of a hassle to have to drill out every new oil filter.
What I'll do with this oil cover now though I don't know. Oh well.
Thanks for all your help
If you are looking to move it on I'll take it off your hands. PM me. if not can you supply the P/N?
That part is very similar to the part on the 690rfr that I have and guess what - I punch the filter centres out and use an O ring to seal it. The stock KTM690rfr filters have a blank end - hole punch leaves no swarf to contaminate the motor. Its good to go. Please say you'll sell it......