Hi everyone, Apologizes first. I know this has been done countless time but yet again, I am confused and need help even after going through countless threads.   The project: 93 GSXR watercooled.  Current state: when I finally got the engine running, I had black smoke coming out of valve cover breather hole.    Decided to look for an alternative. I can have access to a complete pristine running donor bike (1999 bandit 1200s) with low miles. The plan is to ride the 12