2010 Arctic Cat DVX 300 / 300 Utility ATV Service Manual, Page 15Get this manual
DKinked or binding linksEExcessive wearThe presence of any of the conditions requires drive chain replacementNOTE: If the drive chain is worn or damaged, the sprockets may also be worn or damagedInspect the sprockets for worn, broken, or damaged teethAlways inspect the sprockets when new drive chain is being installed CLEANING AND LUBRICATING The drive chain should be cleaned and lubricated frequently to prolong chain and sprocket lifeUse the following procedure to clean and lubricate the chainNOTE: This ATV is equipped with an O-ring type roller chainEach link incorporates small O-rings to seal out water and dirtCare should be taken to choose cleaning solutions and lubricants that are suitable for O-ring type chains
3With person seated on the ATV, check chain tension at the mid-point of the chainNOTE: Chain "slack" should be within range of 30-40 mm (1.2-1.6 in
4Push the ATV forward to tighten chain tension; push the ATV backward to loosen chain tension5Tighten the four cap screws (1) to 29 ft-lb; then tighten the cap screw (2) to 29 ft-lb