Problem Overview
This seems to be a very common issue among bloggers who use feedburner. To be honest i also had the same problem, and did post up on feedburner groups asking for help, but heck no one answered.
So i did some searches on G and saw that quite many bloggers don’t know how to handle this issue, some of them even edit the wp core code messing stuff up thinking that it’s wordpress’s fault that in the feed pops appear as short snippets.
Solution
Go to your Wordpress Admin panel -> Settings -> Reading, there use these settings:

Now head over to Your Feedburner feed management section, click on your feed and select Edit feed details where at the Original Feed URL put http://www.yourblog.com/feed

After this at your Feedburner dashboard go to Optimize -> Summary burner and make sure that Summary burner isn’t active.

Now that everything is done head over to Google Reader, or any Feed reader and check out your feeed. It should display the full feed along with images. Don’t be alarmed if in firefox’s feed reader you see only a snippet, test it in a real feed reader!
Credits go to Dever for helping me figure this out.

Hello, and welcome to my blog. My name is Tom and i am the owner of thaslayer.com. I'm 19 years old and currently in college (Year I) studying English Literature and Lexicology, but also work as a professional freelance web designer, and part-time blogger.