I used to grind out a part on the chassis frame of these motorcycles, and in this manual (which is great) actually shows it removed.
The part was the metal plate right below the transmission oil drain bolt, the Pakistani models were made such that the oil drain would splash on the plate and make a mess of the service stand, If you would grind it away it would drain cleanly into a pan.
good old memories.
btw - you are someone that will most probably hold this forever, may I ask if you do such with everything in you own?