a - Serial number
b - Model year
c - Model designation
d - Year manufactured
e - Certified Europe Insignia (as applicable)
25 4-Stroke Specifications - International
Models 25
Horsepower 25
Kilowatts 18
Full Throttle RPM Range 5500-6000 RPM
Idle Speed in Forward Gear 775 ± 25 RPM
Number of Cylinders 2
Piston Displacement 498 cc (30.4 cu. in.)
Cylinder Bore 65mm (2.5591 in.)
Stroke 75mm (2.953 in.)
Valve Clearance (Cold)
Intake Valve 0.15-0.25mm (0.006-0.010 in.)
Exhaust Valve 0.25-0.35mm (0.010-0.014 in.)
Recommended Spark Plug NGK DPR6EA-9
Spark Plug Gap 0.9 mm (0.035 in.)
Gear Ratio 2.42:1
Recommended Gasoline Refer to Fuel & Oil
Recommended Oil Refer to Fuel & Oil
Gearcase Lubricant Capacity 440ml (14.9 fl. oz.)