Ignition switch removal and cleaning?

I've done a search and I see mention of people cleaning, lubing and 'stretching the spring' inside the switch. Is it possible to carry out this fix and get into only the switch electricals to clean it etc without removing the top yoke and drilling out the anti-tamper bolt? Looking at pictures of the switch it appears that if you could access to it from underneath the bottom part could be removed as it looks like its just held on with screws?

Also, I am sure I found a thread about cleaning the switch where someone had posted pictures including that of the offending spring which needs 'stretched', but I am having a hard time finding any info on it. Anyone enlighten me?

Had another look at it and it appears I'm correct. Just two Phillips screws holding it on. Only trouble is access to them. I'm gonna need an offset screwdriver to get into the screws. Plan on tackling it tomorrow.

Cheers m8, managed it fine eventually. Finally got the switch re-fitted this afternoon. I cleaned up all the electrical contacts using emery paper and then electrical contact cleaner. Then I removed each of the brass contacts (only need to prise out one leg of each contact to remove the spring) and pulled the springs out. Gently stretched the springs and re-fitted them, then popped the brass contacts back into place. Finally reassembled the switch itself and re-fitted it using the two phillips headed screws. I fully removed the top fairing to make life a little easier and used an offset screwdriver which helped loads. Prior to re-fitting the switch I had earlier applied silicone lubricant directly into the barrel using the key slot and worked the key back and forth. Some of the lube will run out the bottom where the slot is so once that had stopped I cleaned/dried it all up and started work on reassembling the switch as detailed above.

The end result is an ignition key which really does seem to be 'as new'. You now get a resounding and positive 'click' as it is switched to the on position with no slackness or movement at all of the key in the ignition barrel. And more importantly its not turning itself off and on when it pleases. :thumbup

Cheers dude, yeah - it was a bit of a pain in the arse but defo worthwhile in the end. :thumbup