Update, I tried blowing through that breather line and it was totally plugged, impossible to blow through it. I used a heatgun to heat up the line that was laying flat on the motor mount and after a few minutes of high heat yellow gunk started to ooze out of the line. No way air would pass and the crankcase could not breathe.
So, how many folks have this line plugged and do you also have an oil cooler?
