Well here is my problem I have an MS290 with the 20 on it and i hit a sandstone a while back and now I can sharpen the chain and take off any burrs that i find and all i can cut at a reasonable pace is ONE :censored: cut. What gives. Before i forget there are a link or two with the angle WAY off. How do i fix the chain and make it usable again. Plus also my oiler is turned all the way up but i still dont get much oil even at full throttle with a good load on. Is there some trick to get it to oil like it used too?