Mercury 225 Service Manual

90-822900R3 DECEMBER 1997 IMPORTANT INFORMATION - 1A-1
Master Specifications
Model 3 Litre Work/225 Carb/225 EFI/250EFI
HORSEPOWER
(KW)
Model 3 Litre
Model 225 Carb
Model 225 EFI
Model 250 EFI
225 (167.8)
225 (167.8)
225 (167.8)
250 (186.5)
OUTBOARD
WEIGHT
3 Litre/225 Carb
– 20 in. (50.8cm) Shaft
– 25 in. (63.5cm) Shaft
– 30 in. (76.2cm) Shaft
225 EFI/250 EFI
– 20 in. (50.8cm) Shaft
– 25 in. (63.5cm) Shaft
– 30 in. (76.2cm) Shaft
440.0 lbs. (199.8kg)
445.0 lbs. (202.0kg)
461.0 lbs. (209.3kg)
450.0 lbs. (204.1kg)
455.0 lbs. (206.4kg)
471.0 lbs. (213.6kg)
CYLINDER
BLOCK
Type
Displacement
V–6 Cylinder, Two Cycle, Loop Charged
185.9 cu. in. (3047cc)
STROKE Length (All Models) 3.00 in. (76.2mm)
CYLINDER
BORE
Diameter (Std)
Taper/Out of Round/Wear Maximum
Bore Type
3.6265 in. (92.1131mm)
0.003 in. (0.076mm)
Cast Iron
PISTON Piston Type
Standard
Aluminum
3.621 in. ± .0005 in. (91.973mm ±
0.0127mm)
COMPRESSION All Models – Using a fully charged
battery, throttle shutters wide open
and cylinder block warm
90 – 110 psi
(616.3 – 753.5 kPa)
Variance between cylinders should not
exceed 15 psi (102.7 kPa)
REEDS Reed Stand 0pen (Max.) 0.020 in. (0.50mm)
MID
SECTION
Power Trim (Total Tilt Range)
Power Trim (Tilt Range)
Steering Pivot Range
Tilt Pin Adjustment Positions
Allowable Transom Thickness
75°
20°
60°
5
2-3/8 in. (6.03cm) Maximum

Mercury 225 Specifications

General

Fuel Induction System	Electronic Fuel Injection (EFI)
Horsepower	225 HP
Steering	Hydraulic Steering
Shaft Length	20"
Starting	Electric Start
Cylinders	V6