1987-2003 Yamaha YFZ350 Banshee supplementary service manual, Page 247Get this manual
SPECIFICATIONS MAINTENANCE SPECIFICATIONS Engine
Model CYLINDER HEAD: Warp Limit 0.03 mm (0.0012 in) Lines indicate straightedge measurement:
CYLINDER: Bore SizeLimitTaper Limit Out of Round Limit PISTON: Piston Size Measuring Point Piston Clearance Oversize: 1st 2nd PISTON RING: TOP RING: TYpe DimensionsT) End Gap (Installed)LimitSide Clearance (Installed)Limit2ND RING: TYpe DimensionsT) End Gap (Installed)LimitSide ClearanceLimitCRANKSHAFT: Crank Width Assembly Width Runout Limit Big End Side Clearance Small End Free PlayLimit
64.00-64.02 mm (2.520-2.521 in) 64.1 mm (2.524 in)0.05 mm (0.002 in) 0.01 mm (0.0004 in)63.94- 64.00 mm (2.517-2.520 in) 10 mm (0.39 in) 0.060 0.065 mm (0.0024- 0.0026 in) 64.25 mm (2.53 in) 64.50 mm (2.54 in)