F25 Specifications

Engine TypeIn-Line 2 Cylinder
Displacement30.4 ci (498 cc)
Bore x Stroke65mm x 75 mm (2.56 x 2.95 in)
Prop Shaft Horsepower25 hp @ 5500 rpm
Compression Ratio9.4:1
Fuel/Induction SystemSOHC
ExhaustThrough Propeller
Ignition SystemCDI Micro Computer
Spark PlugDPR6EA-900-000
Alternator Output13AMP with Rectifier Regulator
Starting SystemM=Manual/ E=Electric
LubricationWet Sump
Engine Oil Capacity1.6L/1.4L without filter
Full Throttle RPM Range5000 - 6000
CoolingWater/Thermostatic Control
Recommended Engine OilYamalube® 4M (See owner's manual)
Recommended FuelRegular Unleaded (Minimum Pump Octane 87)
Recommended Fuel FiltrationYamaha Mini 10-Micron Fuel/Water Separating Filter (external)
Ethanol Blend Limit10% Maximum
Gear Ratio(27:13) 2.08:1
Gear ShiftF-N-R
Shaft LengthS: 15", L: 20"
Degree of TiltManual: Up to 73° w/ 2-position Shallow Water Drive. PTT or Nitro Assist: Up to 73°
Degree of TrimManual : 5 Tilt Pin Positions Nitro Assist: 5 Tilt Pin Positions PTT: -3° through +16°
C.A.R.B. Rating3-Star
Dry WeightF25SMHA = 76kg (168lbs) F25SEHA = 79kg (174 lbs) F25SEA = 77 kg (170 lbs) F25LEA = 78kg (172 lbs) F25LA = 81kg (179 lbs) F25LMHB = 79kg (175 lbs) F25LEHB = 82kg (181 lbs)
Steering Angle (maximum)42° from center, either direction
Warranty3-Year Pleasure, 3-Year Government, 1-Year Commercial