This used to be me. I motorcycle, but unlike perhaps your typical motorcyclist I don't have a good brain/hand/mind for working on engines. I just tend to do a shitty job, get bored before I'm done, or can't wrap my head around the geometry of something (so I'll almost always turn a clutch adjuster the wrong way).

So I'd take my bike in for everything. But I was noticing that things didn't quite seem actually fixed, so I brought the bike over to MotoGuild, a place where you can rent time on a motorcycle lift and they have all kinds of tools you can use included, and popped the engine cover off.

I found horrifying evidence that I can't trust anybody to work on my bike other than me. The sprocket where the chain connects to the engine was loose to nearly falling off - it should be tightened to a shitload of newtons and secured with a locking washer. The clutch area was chunky with crud, despite me having paid for a clutch cable swap and them assuring me they had cleaned everything to avoid my new clutch cable getting gnarly and gross like the last one did (I'd lubricate it and black nasty would come out the cable cover). The chain wasn't really cleaned at all, they had clearly just run a rag on the outside, but between the links and on the tire side, it was nasty. Therefore, it wasn't actually effectively lubed, either.

Bunch of other random things as well.

I am like the LAST person to ever say "if you wanna get something done right, do it yourself," because I am flush with cash and bereft of discipline and willpower, but holy shit, apparently, if you wanna get something done right...