Last weekend I bought a 2002 520sx and it has factory connection suspension, so far really like it. The only thing I have noticed is it seems to be somewhat light on the front end even when I am holding a constant speed and makes the front wheel want to wobble back and forth like i am steering it, the only thing i can to is let off and slow down to get it to stop. The forks seem pretty stiff especially when I'm riding across whoops and rough terrain. I'm wanting to solve these problems and I think by tuning in the suspension I would be beter off. It has factory connection suspension front and rear, I am about 6'5'' 200lbs. and I ride alot of flat farmland terrain but also alot of woods with some hills. If anyone can help me out on what to do I would appreciate it alot.