Recording Serial Number; Specifications - Mercury 25 EFI FourStroke User Manual

Recording Serial Number

It is important to record this number for future reference. The
serial number is located on the outboard as shown.
a - Serial number
b - Model designation
c - Year manufactured
d - Certified Europe Insignia (as applicable)

Specifications

Models
Power
Full throttle RPM range
Idle speed in forward gear
Number of cylinders
Piston displacement
Cylinder bore
Stroke
Valve clearance (cold)
Intake valve
Exhaust valve
Recommended spark plug
Spark plug gap
Gear ratio
Recommended gasoline
GENERAL INFORMATION
a
d
5000–6000 RPM
XXXXXXXX
XXXX
XX
39255
25
18.4 kw (25 hp)
850 ± 25 RPM
526 cc (32.09 cid)
61.0 mm (2.40 in.)
60 mm (2.36 in.)
0.13–0.17 mm (0.005–0.007 in.)
0.18–0.22 mm (0.007–0.008 in.)
NGK DCPR6E
0.8–0.9 mm (0.031–0.035 in.)
Refer to Fuel and Oil
40
b
c
30
22.1 kw (30 hp)
5250–6250 RPM
3
1.92:1
eng