Adjusting the chain tension is relatively straight forward. You can do this while the bike is on the sidestand, though a bike stand does make it a little easier. a) Loosen the bolt that holds the wheel. b) At the back of each side of the swingarm there will be 2 nuts (mine were a size 12 and 13 metric socket). unscrew the top nut on both sides (the smaller nut should be on top). This will allow you to adjust the inside bolt. c) start tightening the inside bolt. Do this evenly on both sides of the bike (i.e. do a half turn one side, then half turn the other side). Try to keep the number of turns identical on both sides (not necessary, but makes life easier). d) repeat (c) until the chain is at the desired tension. The desired tension is when the chain has about 2 cm of free play when someone is sitting on the bike. If you adjust the chain so that it has 2 cm of play without load then when someone sits on the bike the chain will be slightly too extended and this could increase chain wear (possibly break the chain) and decrease suspension effectiveness. If too loose the chain could skip and also rattle against the swingarm. You can get someone to sit on the bike without tightening up the outside nuts. e) When the chain is at the desired tension, check to ensure that the wheel axle is at the same marking on both sides of the swingarm. You will notice marks on the swingarm - use these to measure up. If not, adjust the inner nut on one of the sides until they match. If you adjust - check your tension again. f) After you are happy, tighten the outer nuts to lock in the inner nut, then tightend the main wheel bolt.
