General Specifications
HP / kW 2.5 HP / 1.9 kW
Displacement 72 cc (4.4 cu in.)
Cylinders 1 (Inline)
WOT RPM Range Check Manual
Bore x Stroke 54 x 31.5 mm
Weight (Lightest) 17 kg / 37 lbs
Drive & Lower Unit
Gear Ratio 2.01:1
Shaft Options 15, 20
Propeller Style 7.25–8"
Maintenance Quick-Specs
Engine Oil Yamalube 4-Stroke
Oil Capacity See Manual
Gear Lube See Manual
Spark Plug Check Search
Fuel/Power Regular Unleaded 87 Oct
Identification
The serial number for the Yamaha F2.5 Portable is typically found on a plate located on the transom bracket.