Suzuki DF25/DF30 Four Stroke Service Manual, Page 18Get this manual
GENERAL INFORMATION
Data DF25Q25QE DF25QR25T DF30Q30QE DF30QR30T
CYLINDERPISTONPISTON RING
Cylinder distortion Piston to cylinder clearance Cylinder bore Limit STD Limit STD mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) Limit 1st STD Limit STD Limit STD Limit STD Limit STD Limit STD Limit STD STD STD STD STD STD Limit STD Limit STD Limit STD Limit STD mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) 0.030 (0.0012) 0.020 0.040 (0.0008 0.0016) 0.100 (0.0039) 65.000 65.020 (2.5591 2.5598) 50 (2.0) from cylinder top surface 64.970 64.990 (2.5579 2.5587) 19 (0.7) from piston skirt end0.100 (0.0039) 0.12 0.27 (0.005 0.011) 0.70 (0.028) 0.35 0.50 (0.014 0.020) 1.00 (0.039) Approx9.1 (0.36) 7.3 (0.29) Approx9.0 (0.35) 7.2 (0.28) 0.03 0.07 (0.001 0.003) 0.12 (0.005) 0.02 0.06 (0.001 0.002) 0.10 (0.004) 1.02 1.04 (0.040 0.041) 1.21 1.23 (0.0476 0.0484) 2.01 2.03 (0.079 0.080) 0.97 0.99 (0.038 0.039) 1.17 1.19 (0.046 0.047) 0.006 0.019 (0.0002 0.0007) 0.040 (0.0016) 15.995 16.000 (0.6297 0.6299) 15.980 (0.6291) 16.006 16.014 (0.6302 0.6305) 16.030 (0.6311) 0.003 0.016 (0.0001 0.0006) 0.050 (0.0020) 16.003 16.011 (0.6300 0.6304)