1988-2006 Yamaha ATV YFS200 Blaster service manual PDF download file., Page 191Get this manual
INSPECTION IMeasure: 10-link length (Drive chain) Out of specificationReplace drive chain10-Link Length Limit: 150.1 mm (5.91 in)
NOTE: For measurement make the chain tense by finger10-link length is measurement between the insides of the and rollers as shownTwo or three different 10-link lengths should be measured
2Clean: Drive chain Place it in kerosene, and brush off as much dirt as possibleThen remove the chain from the kerosene and dry the chain