White smoke coming out of tail pipes

[EMB2580]

Ok, even though I don't drive her anymore due to bad motor mounts, I still start it about twice a week. I noticed today that there is smoke coming out of the tailpipes, more out of the left than the right, it's not a thick smoke, but it is noticable. is that just from sitting or what?

 

[SHORANGERBIRD]

-prolly just moisture burning out from sitting....