Unlock chain brake 
Proper tensionImproper tension
Direction to tension the chain
Adjusting screw
ADJUSTING CHAIN TENSION
IMPORTANT
Always loosen clutch cover nuts before turning the chain tension adjuster, otherwise the clutch cover and tensioner will be damaged.
1.Remove spark plug lead. (See page 25)
2.Unlock the chain brake and loosen two clutch cover nuts, if necessary.
3.Hold the bar nose up, and turn the adjuster screw clockwise until chain fits snugly against underside of the bar.
4.Tighten both nuts with the bar nose held up.
5.Pull the chain around the bar by hand. Loosen the adjustment if you feel tight spots.
6.When chain is properly tensioned, tighten clutch cover nuts securely - 20 to 23 N·m (175 to 200 in. lb.).
7.Keep chain properly tensioned at all times.
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