Boys that don't read...age old problem. We had the same problem with my son, could read just about anything but wouldn't read anything
Then his school reported that her would spend 'Golden Time' poring over comics. Apparently as they are very visual with short text they are very good for shorter attention span of boys (sorry is this sexist?). After getting over the shock
that they have comics in school and the even bigger shock
that my son was reading without being nagged/asked we bought a few comic books on subjects he liked, it seemed to get him into the habit of reading and he usually reads now out of choice every night at bedtime.
You have to be interested in something to want to read. It only takes one book to open that door, I know a (now adult) dyslexic who said in her teens 101 Dalmations was the book which opened the door to reading. Before that she just hadn't been interested.
My daughter wouldn't read but for a different reason for lack of interest - eyesight problems. Consider having his eyesight checked by a behavioural optometrist, not just an optician. 1 in 4 children suffer from eye problems such as convergence insufficiency (problems with muscle strength in the eyes which affects focusing) which go un-noticed as they pass on standard eye tests. Reading is this task which places high demands upon the eyes and tires the muscles, so kids with this problem simply avoid reading. My daughter now reads avidly following a program of excercised for her eyes to correct her problem.
Can post how to find a behavioural optometrist if anyone is interested.
Failing this - resort to bribery