I just recently got a 89 warrior. However i noticed the chain was lose and went to tighten it. The problem is that the chain adjuster bolts are stripped/broken off. How would i replace them, just remove them with a pair of plyers or something? Will i need to losen anything else other then the nut on them to remove the bolts? Also, what is the correct way about going to tighten a chain up. Thanks for the help. This might be a dumb question, however i just got the bike a few weeks ago.