Picked up a 2002 Wr 250 for a song here in San Diego. Fairly clean but it needs a rear shock r/r, maybe new fork seals but it will need new intake valves as they are on the smallest shim. The valves are above my pay grade but the other two are not. Those of you that have had these bikes: are they maintenance nightmares as my Honda friends claim? (I have an XR 250 also). I figure I paid 900.00 and if I throw another 500-700 I'm into it less than 2k and hell, new they are 7k +. Thoughts??