1990-2004 Yamaha YFM350X Warrior Factory Service Manual, Page 198Get this manual
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ENGINE ASSEMBLY AND ADJUSTMENT PISTON AND CYLINDER
SIDE CLEARANCE: 0.040.08 mm (0.00160.0031 in) END GAP LIMIT (Installed): 0.200.40 mm (0.0080.016 in)
TAPER LIMIT: 0.05 mm (