1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 13Get this manual
GENERAL INFORMATION
SERVICE DATA
Item Unit Data DF40T DF50T
POWERHEAD
Recommended operating range
rmin rmin kPa (kgcmpsi)
5200 5800
5900 6500
Idle speed Cylinder compression
Cylinder compression maxdifference between any two cylinders
850 50 (in-gear: approx.850) 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 Viscosity rating SE, SF, SG, SH, SJ SAE 10W-40