buying first bike . zzr250

hey guys i dunno if im suppous to post this here but im complete noob who just got he's L's and cant wait to start riding. since no one i know owns a bike and i dun have much (none actually) experience picking out a bike i would like you guys to give me some heads ups.
i did a little bit of research around the net (bikesales mainly) and talked to some people at the place where i got my L's, it seems like the zzr250 would suit me, first its quite cheap for a 2nd hand bike, i dont plan to spend too much over 4000 to take to bike home and also it is able to do some highway riding as i live in both bendigo and melb. i've heard the zzr250s are quite bulletproof but are there any common problems with the bike? and also im planning to cheak out some bikes i've seen on bikesales, would love some hits on spotting the difference between a good bike and a lemon
any imput would be appreciated
i did a little bit of research around the net (bikesales mainly) and talked to some people at the place where i got my L's, it seems like the zzr250 would suit me, first its quite cheap for a 2nd hand bike, i dont plan to spend too much over 4000 to take to bike home and also it is able to do some highway riding as i live in both bendigo and melb. i've heard the zzr250s are quite bulletproof but are there any common problems with the bike? and also im planning to cheak out some bikes i've seen on bikesales, would love some hits on spotting the difference between a good bike and a lemon
any imput would be appreciated