Take care as not to over tighten the sump plug / oil drain plug. It is easy to cross thread / damage / strip the threads, if you work ham-fisted. Same thing applies to the oil filter threads.
DR Strom has a few helpful videos, if you need a guide or you could read through
https://blacklabadventures.com/2012/04/01/changing-the-motor-oil-with-a-skidplate-installed/Spark plugs can also be easy to cross thread, so take care. It is suggested that you turn the spark plug in bu hand for the first few turns. It is easier to feel when things go south than detecting a problem through the plug spanner. The plug spanner in the bike's tool kit works best.
There is a trick to accessing and working on the top front cylinder spark plug. The radiator makes it a slightly fustrating task, but if you work carefully, you can prevent damage to the radiator fins. You could try some cardboard, to help protect the radiator fins while you work in that area.
A reminder that there are four spark plugs to change on the K7 Wee (two per cylinder), unlike the earlier models which only have two spark plugs (one per cylinder).
