So I was wondering should I be looking to replace the ccos on my 15 n13? When I do mountain runs I usually get oil coming out of the blow by tube. I noticed my engine doesn’t seem to have the ccos the same way as the older mf13. Today I caught it sending oil all the way down the fuel tanks and even onto my fenders. It doesn’t blow a lot it seems but I’d like to stay on top of it if it’s a problem.