1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 341Get this manual
13-5 DF40DF50 "K1" (01) model Data DF40T40QH DF50(W)T50(W)QH
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) 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)