1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 323Get this manual
12-5 DF40DF50 "Y" (00) model Data DF40T40QH DF50T50QH
CYLINDERPISTONPISTON RING
Cylinder distortion
Limit STD Limit STD
mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)
0.060 (0.0024) 0.020 0.040 (0.0008 0.0016) 0.100 (0.0039) 71.000 71.020 (2.7953 2.7961) 50 (2.0) from cylinder top surface 70.970 70.990 (2.7941 2.7949) 19 (0.7) from piston skirt end 0.100 (0.0039) 0.10 0.25 (0.004 0.010) 0.70 (0.028) 0.25 0.40 (0.010 0.016) 1.00 (0.039) Approx7.5 (0.30) 6.0 (0.24) Approx11.0 (0.43) 8.8 (0.35) 0.02 0.06 (0.001 0.002) 0.10 (0.004) 0.02 0.06 (0.001 0.002) 0.10 (0.004) 1.01 1.03 (0.040 0.041) 1.01 1.03 (0.040 0.041) 1.51 1.53 (0.059 0.060) 2.01 2.03 (0.079 0.080) 0.97 0.99 (0.038 0.039) 0.97 0.99 (0.038 0.039) 0.006 0.018 (0.0002 0.0007) 0.040 (0.0016) 17.996 18.000 (0.7085 0.7087) 17.980 (0.7079) 18.006 18.014 (0.7089 0.7092) 18.040 (0.7102) 0.003 0.015 (0.0001 0.0006) 0.050 (0.0020) 18.003 18.011 (0.7088 0.7091)