Anyone ever have the PVC hose "sweat" oil? It never did this before only change is a switch from 20w/50 to 10w/30, and 750dp single plane to 6 pack. Could it be a stronger vacuum signal from the small center carb? It doesn't seem to dump oil into the base of the carb,its actually pretty dry at the carb. Hose seems to just sweat by the pvc for a few inches.