how does the engine turn over with all that burnt oil on the Liner? don't force it to turn!
It is an ABC ringed engine.
ABC liners are Chrome. Randy Linsalato of MECOA will tell you running a Chrome liner too rich too long is almost as bad as running it too lean. so be careful. he also said, you can have 5 engines of the same brand, same type and size. and every one of them can break-in different and run different (I knew that lol).
everyone breaks-in their engines differently. ask 10 people, you will get 10 different ways. people say "the cheaper engines need a longer break-in".
but you have to clean that liner before you start it again.