Specifications and requirements100.8–0.9 mm (0.031–0.035 in)Control system:F15CEH TillerF15CMH TillerF20BEHP TillerF20BEP Remote controlF20BMH TillerStarting system:F15CEH ElectricF15CMH ManualF20BEHP ElectricF20BEP ElectricF20BMH ManualStarting carburetion system:Prime startValve clearance (cold engine) IN:0.15–0.25 mm (0.0059–0.0098 in)Valve clearance (cold engine) EX:0.25–0.35 mm (0.0098–0.0138 in)Min. cold cranking amps (CCA/EN):F15CEH 347.0 AF20BEHP 347.0 AF20BEP 347.0 AMin. rated capacity (20HR/IEC):F15CEH 40.0 AhF20BEHP 40.0 AhF20BEP 40.0 AhMaximum generator output:10 ADrive unit:Gear positions:Forward-neutral-reverseGear ratio:2.08(27/13)Trim and tilt system:F15CEH Manual tiltF15CMH Manual tiltF20BEHP Power tiltF20BEP Power tiltF20BMH Manual tiltPropeller mark:JFuel and oil:Recommended fuel:Regular unleaded gasolineFuel tank capacity:F15CEH 12 L(3.17 US gal, 2.64 Imp.gal)F15CMH 12 L(3.17 US gal, 2.64 Imp.gal)F20BEHP 24 L(6.34 US gal, 5.28 Imp.gal)F20BEP 24 L(6.34 US gal, 5.28 Imp.gal)F20BMH 24 L(6.34 US gal, 5.28 Imp.gal)Recommended engine oil:4-stroke outboard motor oilRecommended engine oil group 1*:SAE 10W-30/10W-40/5W-30API SE/SF/SG/SH/SJ/SLRecommended engine oil group 2*:SAE 15W-40/20W-40/20W-50API SH/SJ/SLLubrication:Wet sumpTotal engine oil quantity (oil pan capacity):Without oil filter replacement:1.6 L (1.69 US qt, 1.41 Imp.qt)With oil filter replacement:1.8 L (1.90 US qt, 1.58 Imp.qt)Recommended gear oil:Hypoid gear oil SAE#90Gear oil quantity:0.250 L (0.264 US qt, 0.220 Imp.qt)Tightening torque for engine:Spark plug:18.0 Nm (1.84 kgf-m, 13.3 ft-lb)Propeller nut:17.0 Nm (1.73 kgf-m, 12.5 ft-lb)Engine oil drain bolt:28.0 Nm (2.86 kgf-m, 20.7 ft-lb)