Hello everybody, I'm Lee, and I'm new to the forum. I have been riding a CR500 and XR600 for years, and I just recently bought a 1992 KX500. I was wondering if there is a fix for the crank cases that have a sloppy fit for the main bearing? My left side case is good, as the bearing spun on the crankshaft, but my right case the new bearing just drops rite in. I hope to get this bike restored, but this crank case problem needs to be solved first.