If you have a frozen stuck pivot bolt, read the QUOTE..it may help you a bunch Now, on to the nightmare! I have been putting this off for a while now. About a year ago, I thought I would try and remove the swingarm bolt out of the XR400. I have soaked it several times with all kinds of penetrating oil to no avail. I have even gotten the assistance of a couple of friends to help me beat on this thing, complete with 500lb pnematic impacts, with no results. So this has been on my mind alot. About 3 weeks ago, we went for a ride. The XR started to miss so I nursed it home. Tried to change the plug but the cheap plug wrench rounded off the plug. Now is the time to pull the motor, do a top end on it and fix that damn swingarm bolt and a fe other things. ok, so myself and inmate Mossycreek decide to tackle this. We come up with a bar that we will turn down on the lathe and then use this bar as a punch and see if we can't beat the bolt out. So we turn down abt 3 inche enough to fit thru the frame just enough to get a good solid seat and hit on the bolt..we laid the XR on its side and some wood to protect the cases just incase the hammer missed. The only thing we accomplished was knocking the threads completetly out of the swingarm bolt nut. :huh The bolt did not budge. So now, we are eyeballing the 20 ton press over in the corner. We lay the XR up on the bike table and raise it up enough to fit the back end into the press. So mossycreek starts pumping it...he had to get up on the table so he could apply more pressure :eek1 we had that handle TIGHT! Could not push down any more on it. It was quite tense in the shop. We just knew something was going to pop or explode..nadda, nuttin..bolt did not move! So now we whip out the drill..sorry, no pix of this process, doesnt matter anyway cause drilling the bolt out did not work either! :huh What a mess! last resort, out comes the sawzall... Now I can get the saw in there enough to cut out the bolt..and that works..FINALLY I get the motor out Now I have to get the remnats of the swing arm off the motor. once the swing arm is chopped off, I slide the end pieces off and find that the bolt is rusted tight to the bushings..I take the grinder and cut into the bushing and finally get it off. I then take the sledge and beat on the bolt and finally it starts to move. I soaked it with some liquid wrench and that seemed to help. The end of the bolt started to mushroom a bit and after knocking the bolt back and forth thru the motor mount a couple of time to loosen it up some more, I then cut off the mushroom end and drove the bolt out...all in all, I have abt 10 hrs into this trying to remove this damn bolt. Many have suggested that I install zerks into the swingarm. Sure thats a good idea but I think from now on, the swing arm bolt will get pulled EVERY YEAR and lubed..if I have zerks in there, then all I would do is grease it and not pull it to check it..I dont EVER want to go thru this again so the bolt get pulled annually, PERIOD! I have another swing arm on the way and I really hated to cut this one but I had no choice. Let this be a lesson to you guys, check that swing arm bolt often!