Cozz, I ran 1/4" 90 degree elbows from both breather bolts behind A/F next to front pushrod tube, venting side by side out of frame tube below oil filter. I cut both lines below frame at an angle to draw crankcase vapor out of tubes at speed. No sludge in lines after a year of riding. Yes two separate 1/4" vent tubes side by side out the bottom, no catch can or filters. I used zip ties at all clean connections. It is subtle.

 

If system is scavenging or breathing enough, it should exit tube(s) without collecting in tubes. Short trips or running in colder weather can add to this issue.

 

Could be a kink or low spot in the line thats holding it in.

 

That's another possibility.

 

"Back in the Day" (in automotive applications), those were called Road Draft Tubes...before PCV

 

"Zackley" same theory, same design. I didn't think anybody on this forum was old enough to know what a draft tube was or a "slobber tube"

 

breather bolts came in I'll post pix in a few days

 

On the 50's era Chevy's and Buicks the draft tube had a mesh screen that would clog up and we used to heat them up with torches to get them to vent again. Yes! some of us are old enough (G)

 

Damn...you're old

 

Nels nickname is "Dirt"