In preperation for some engine case cleaning and polishing, I pulled the left side case cover off. This is the case that covers up the clutch. It also houses the clutch depresser thingy the clutch cable attaches too (it pivots and moves inward to release the clutch.) And, this is where you fill the engine with oil, and drain it. So I was expecting some amount of gunk buildup. this is what it looked like:
Inside of case:
I didn't clean anything. Not even a wipe of a rag, or a spray of degreaser. Everything looks great.