I'm new to the forum here so if there is somewhere I should be looking for this info please let me know.

I've recently been trying to get back on a bike to loose weight as well as recreational purposes so I have pulled out my old bike to get started on. As far as I can tell it is a 2001 Mongoose switchback (based on the picture here: http://www.bikepedia.com/QuickBike/B...back&Type=bike). Not exactly the most amazing bike but I'm not likely going to get the green light to get anything else anytime soon. I've been working on it getting things more or less adjusted correctly. I'm pretty mechanically inclined, I do most of my own car repairs, including some more "difficult" ones so I would like to learn how to do this myself as much as is possible.

This bike was bought from Dick's several years ago and not used much, I don't think it was ever really setup "right." It's working reasonably well at this point but I have found that the adjustable stem really never gets tight enough for the handlebars to feel solid. I think it is a problem with the part at this point, I just don't think it can physically be adjusted to be tight (too much clearance between the parts). So I was considering replacing the stem. So my reason for posting here is I am not sure what part I should be looking for, many of the stems I'm seeing do not look like they would work with my bike so I'm trying to figure out what will.

Also based on the specs in the Bikepedia page any recommendations for improvements that can be made without spending too much $$ (I don't think this bike is worth putting to much into).