Ya, what ChattanCat said; though I can't look at the pictures.

Leon used to take the whole engine off the motercycle; take it apart for the most part; then clean each part in five gallon buckets of solvent cleaner stuff. He had a Honda Silverwing and a Yamaha of some sort. It was like a ritual every six months and I hated having to help.

I do remember him having to replace the needel valve pins etc when he was trying to get the Honda up and running.