According to the "Chicken Chick" blog, honey like or maple syrup looking fluid means there is bacteria present....
http://www.the-chicken-chick.com/2012/02/bad-egg-in-incubator-ticking-time-bomb.html
http://www.the-chicken-chick.com/2012/02/bad-egg-in-incubator-ticking-time-bomb.html