1988-2006 Yamaha ATV YFS200 Blaster service manual PDF download file., Page 59Get this manual
DRIVE CHAIN SLACK ADJUSTMENT
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DRIVE CHAIN SLACK ADJUSTMENT NOTE: Before checking andor adjusting, rotate the rear wheels through several revolutions and check slack several points to find the tightest pointCheck andor adjust the chain slack with the rear wheels in this "tightest" position
1Elevate the rear wheels by placing suitable stand under the rear of frame2Measure: Drive chain slack (a) At the position shown in the photographOut of specification AdjustDrive Chain Slack: 30 40 mm (1.18