GENERAL INFORMATION
40 eng
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
25 30
Power 18.4 kw (25 hp) 22.1 kw (30 hp)
Full throttle RPM range 5000–6000 RPM 5250–6250 RPM
Idle speed in forward gear 850 ± 25 RPM
Number of cylinders 3
Piston displacement 526 cc (32.09 cid)
Cylinder bore 61.0 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.)
Gear ratio 1.92:1
Recommended gasoline Refer to Fuel and Oil