1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 431Get this manual
15-3 DF4050 "K4" ('04) MODEL
SERVICE DATA
Item POWERHEAD Recommended operating range Idle speed Cylinder compression Cylinder compression maxdifference between any other cylinders Engine oil pressure Engine oil Engine oil amounts (USImpqt) Except E01 E01 rmin rmin rmin kPa (kgcm2, psi) kPa (kgcm2, psi) kPa (kgcm2, psi) 5200 5800 5900 6500 5600 6200 850 50 (in-gear: approx850) 1300 1600 (13 16, 185 228) 100 (1.0, 14) 300 380 (3.0 3.8, 43 54) at 4000 rmin (at normal operating temp API classification SE, SF, SG, SH, SJ Viscosity rating SAE 10W-40 2.2 (2.31.9): Oil change only 2.4 (2.52.1): Oil filter change 58 62 (136 144) Unit Data DF40T40QH DF50(W)T50WQH