2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 326Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 326

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2 Acce,etable inside .diameter range is 12.000-12.018 mm (0.472-0.473 mMeasuring Rocker Arm Shaft (Outside Diameter)
NOTE: Do not grind the valvesIf valve is damaged, it must be replaced
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