[anzalone22]

After riding I've been noticing that I get a drop or two of oil from the carb drain lines.

Is this common? What can be the cause?

 

[ducpainter]

It isn't common. It would be really hard (read impossible) for oil to get in there. Are you sure it's oil?
There shouldn't be any liquid coming from those tubes unless you loosen the screws.

 

[ducman851]

Ill echo DPs comments and add, that Ive seen times where the bowl screws may seep and then when the liquid part of the fuel evaporates, you get kinda of an oily goo that may look like dirty oil at the ends of the drain hoses.

 

[anzalone22]

you get kinda of an oily goo that may look like dirty oil at the ends of the drain hoses.

That's exactly it. Thanks for your help guys.

 

[ducman851]

Go forth and ride my son [laugh]