Mercury 25 Jet 4-Stroke - Recording Serial Number; 25 Jet 4-Stroke Specifications - International

GENERAL INFORMATION
26
Recording Serial Number
It is important to record this number for future reference. The serial
number is located on the outboard as shown.
24800
XX
OTXXXXXX
XXXX
a
b
c
d
a - Serial number
b - Model designation
c - Year manufactured
d - Certified Europe Insignia
(as applicable)
25 Jet 4‑Stroke Specifications ‑ International
Models 25
Horsepower 25
Kilowatts 18
Full Throttle RPM Range 5000‑5500 RPM
Idle Speed in Forward Gear 850 ± 25 RPM
Number of Cylinders 3
Piston Displacement 526 cc (32.09 cu. in.)
Cylinder Bore 61 mm (2.40 in.)
Stroke 60 mm (2.36 in.)
Valve Clearance (Cold)
Intake Valve 0.13‑0.17 mm (0.005‑0.007 in.)
Exhaust Valve 0.18‑0.22 mm (0.007‑0.008 in.)
Recommended Spark Plug NGK DCPR6E
Spark Plug Gap 0.8‑0.9 mm (0.031‑0.035 in.)
Recommended Gasoline Refer to Fuel & Oil
Recommended Oil Refer to Fuel & Oil