Oh by the way, I can't get any emoticons to insert.
We're not missing anything, man. Those bloody emoticons are overrated.
Some hipster probably invented those things and we need to embrace, adapt and use or it's seen as something lacking to get your thought or remark across.
You have a low mileage MC which will easily clean up with some degreaser or whatever your preferred environmentally friendly cleaner.
Use some fine grade Scotchguard to clean cylinder bore if need be.
The kit is a simple fix. One 3mm retaining screw and the piston literally pops right out.
Pre-soak the kit piston in brake fluid to get the rubber pliable.
Pack the replacement accordion cup/rubber boot with some grease to prevent future crud intrusion.
I use standard plumbers high temp grease found at the local plumbing supply or Home Depot, etc..
More MC info
http://www.motobrick.com/index.php?topic=291.0Oetiker clamp are usually 1 and done use. You may try using needlenose pliers, O-ring remover, a pick or scriber to loosen but its difficult.
A sharp pair of cutters is best for removal
BMW recommended oetiker clamp replacement 17111460862