2006 Arctic Cat Y-6/Y-12 50cc and 90cc Service Manual, Page 53Get this manual
45Install outer drum over the driven clutch assemblySecure with the flange nut tightened to specifications DSC02307
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46Install the starter motor into the left-side crankcaseTighten the two cap screws to specifications
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49Spread the sheaves of the driven clutch by grasping the movable sheave tightly and pulling out toward the clutch; then while holding the sheaves apart, push the drive belt to the center of the driven clutchDSC02306
47Install the starter one-way gear
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