General Specifications
HP / kW 9.9 HP / 7.4 kW
Displacement 209 cc (12.8 cu in.)
Cylinders 2 (Inline)
WOT RPM Range Check Manual
Bore x Stroke 55 x 44 mm
Weight (Lightest) 38.5 kg / 85 lbs
Drive & Lower Unit
Gear Ratio 2.08:1
Shaft Options 15, 20
Propeller Style 8.5–10"
Maintenance Quick-Specs
Engine Oil Mercury FourStroke Oil 10W-30
Oil Capacity 1 Liters
Gear Lube 290 ml
Spark Plug NGK DCPR6E
Fuel/Power Regular Unleaded 87 Oct
Identification
The serial number for the Mercury 9.9hp FourStroke EFI is typically found on a plate located on the transom bracket.