I just picked up a 1997 KLX 300 with a broken idler gear. Once I got it apart, I noticed that the idler gear shaft and bearing were also broken. Not to mention the case has a 1/4 inch crack. I ordered the parts (from Stroker) and I am getting ready to split the case and repair it. I have a buddy with a magnesium welder who is going to fix the crack. Is there anything else I should know before I tackle this project? Once I get it repaired, do I need to check the idler gear periodically? Are there any other chronic problems besides the ones mentioned on PlanetKLX.com? Just looking for some first hand advise. Any input would be appreciated.