please reply, need a new 4 stroke

) your physical size (both height and weight are important)
i am 5' 11" and about 160 lbs
2) How physical / aggressive are you ?
im aggressive when i need to be lol
3) what do you plan to ride- MX/SX tracks, woods, fields with friends or ?????
i plan on riding on trails with some pretty steep slopes in em also theres a track that my friends go to with some jumps that i wanna try
4) Do you have any riding experience?
yes i have an 03 XR 100 that ive been practicing on
5) Do you think you will race ?
probably not .. unless its like a little race down a straightaway on the trails
6) Are you mechanically inclined and will you be doing your own bike work?
im mechanically inclined
7) Do YOU have a preference to a brand/ motor choice (2 or 4 stroke)?
i prefer honda 4 stroke
8) Do you have a dealer close by your home that you might use and what brand(s) does he carry?
dont really have any dealers .. just look it up on kijiji
9) How much ($) do you plan to spend on a bike?
around 1500 - 2500 MAX
10) Do you live in California?
er no?
11) Your age?
16
12) anything else that you think would help form an opinion
i am looking for a really reliable 4 stroke bike, only reason im looking for a new bike is because i have outgrown the XR 100, i want the bike to be quick and be able to climb some decently steep hills, also i dont want to be making adjustment to valves or stuff like that every 2 hours, i had my eyes on a CRF 250 but people keep saying they arent the most reliable because of problems .. i dont know what exactly .. they werent clear .. i also had my eyes on a CRF 150 or a CRF 230 ( only has elec start so not really wanting it) and again people are saying no because bikes are heavy .. im so confused any help would be GREATLY appreciated thanks in advance

thanks for the advice but i cant find a XR 250 anywhere .. also i cant really find a CRF 250 ( non R version ) .. do you have any suggestions .. ive mostly just been using kijiji

thanks guys for all this help .. but i took a ride on a cr 125 and im lovin the 2 strokers, i dont really care about maintenance and stuff anymore cus i cant find ANY decent 4 strokes in this area so i thought id just go with a 2 stroke, im thinking about getting this cr 125 with pro circuit pipe and silencer, renthal bars, new UFO black plastics(shrouds and fenders) 2000$ what do you think ?, i didnt want to open up a new thread cus i didnt no if anyone wuld be mad

heres what it says on the AD
** new top and bottom end halfway through last season. pro circuit pipe and silencer. new black ufo plastics. runs great. never raced. will throw in size 12 MX boots, brand new shift pants, jersey and gloves (size large, red)

the bike is a year 2000, i dont know how to get pics on here tho lol.
im going to go look at the bike and see how it runs of course and i wanna see if anything is amiss on the engine and if its like leaking oil or something lol
also .. could anyone kinda clear a matter up for me?, my friends all think im gunna kill myself on this bike because its pretty powerful apparently , im used to honda XR 100 so i can kinda see where they're coming from, does anyone have any advice , im new to 2 strokes