2-3SPECMAINTENANCE SPECIFICATIONSItem Standard LimitCylinder head:Combustion chamber capacity 10.2 cm 3 …(0.359 Imp oz, 0.345 US oz)Warp limit … 0.03 mm (0.0012 in)Cylinder:Bore size 54.000~54.014 mm 54.1 mm (2.130 in)(2.1260~2.1265 in)Taper limit … 0.05 mm (0.0020 in)Out of round limit … 0.01 mm (0.0004 in)Piston:Piston size/ 53.957~53.972 mm …(2.1243~2.1249 in)Measuring point* 17.5 mm (0.69 in) …Piston clearance 0.040~0.045 mm 0.1 mm (0.004 in)(0.0016~0.0018 in)Piston offset 1.0 mm (0.039 in)/EX-side …Piston pin:Piston pin outside diameter 14.995~15.000 mm 14.975 mm(0.5904~0.5906 in) (0.5896 in)Piston ring:Sectional sketch Plain …B=1.0 mm (0.039 in) …T=2.15 mm (0.085 in) …End gap (installed) 0.5~0.7 mm (0.020~0.028 in) 1.2 mm (0.047 in)Side clearance (installed) 0.035~0.080 mm 0.1 mm (0.004 in)(0.0014~0.0031 in)Crankshaft:Crank width “A” 55.90~55.95 mm …(2.201~2.203 in)Runout limit “C” 0.03 mm (0.0012 in) 0.05 mm (0.0020 in)Connecting rod big endside clearance “D” 0.20~0.70 mm (0.008~0.028 in) …Small end free play “F” 0.8~1.0 mm (0.031~0.039 in) 2.0 mm (0.08 in)Clutch:Friction plate thickness 2.9~3.1 mm (0.114~0.122 in) 2.8 mm (0.110 in)Quantity 8 …Clutch plate thickness 1.5~1.7 mm (0.059~0.067 in) …Quantity 7 …Warp limit … 0.2 mm (0.008 in)Clutch spring free length 40.1 mm (1.579 in) 38.1 mm (1.500 in)Quantity 5 …Clutch housing thrust clearance 0.20~0.25 mm (0.008~0.010 in) …Clutch housing radial clearance 0.015~0.049 mm …(0.0006~0.0019 in)Clutch release method Outer pull, rack and pinion pull …EC212000MAINTENANCE SPECIFICATIONSEC212100ENGINE
