What a difference since installing a duckbill! The mayo is gone. Gone. Removed the catch can, plugged the hose from the timing chest, added a duckbill to the stock hose that ran from the crankcase to the catch can and routed it up and over to just in front of the primary drive sprocket. It points toward the sprocket and mists it with any oil mist that may come out. Looped it up, toward the front of the engine, and down toward the drive sprocket, with a nylon wire tie to the lead heading toward the points. Total parts count: 3. 1)Duckbill from CMW. 2)Brass hose barb, from Ace Hardware, to splice the duckbill to the hose from the crankcase. 3) A black, nylon wire tie to attach the duckbill to the lead to the points. What a simple job with dramatic results!