while reading how does one know where to put the stress in the word?

Here´s a nice article on accenting in Turkish:

http://www.practicalturkish.com/turkish-accenting.html

 Woww, I didn´t know it was so complicated, but a good and true article.

In two syllable Turkish words the stress is almost invariably on the second syllable.

It gets more difficult for words with more than two syllables, Still you will be right most of the time, if you stick with putting the stress on the second syllable