Mercury 225 OptiMax Owner's Manual

GENERAL INFORMATION
15
Models 200 225
Kilowatts 149 168
Full Throttle RPM Range 5000‑5750
Idle Speed in Forward Gear 575 ± 25 RPM
Number of Cylinders 6
Piston Displacement 3048 cc (186 cu. in.)
Cylinder Bore 92.1 mm (3.626 in.)
Piston Stroke 76.2 mm (3.000 in.)
Recommended Spark Plug NGK IZFR5G
Spark Plug Gap 0.8 mm (0.031 in.)
Standard Gearcase Ratio 1.75:1
High Altitude Gearcase Ratio 1.87:1
Recommended Gasoline Refer to Fuel & Oil
Recommended Oil Refer to Fuel & Oil
Gearcase Lubricant Capacity 798 ml (27 fl. oz.)
Battery Rating
1000 Marine Cranking Amps (MCA) or 800 Cold
Cranking Amps (CCA)
Charging System Output 60 Amps

Mercury 225 OptiMax Specifications

General

Engine Type	V6
Horsepower	225 HP
Fuel Induction System	2-stage Direct Fuel Injection (DFI)
Alternator Output	60 amp / 756 watt
Weight	505 lbs / 229 kg
Cylinders	6
Starting	Electric
Gear Ratio	1.75:1
Displacement	3.0L
Shaft Length	20", 25"