If you're after no nonsense, lightweight, two stroke power, Yamaha's 25B ticks all the boxes at an affordable price. Built around a proven two cylinder CV platform, these engine have earned a stunning reputation for durability and reliability and can be seen powering vessels around every corner of the globe. Superior design and engineering allows these engines to run a 100:1 pre mix oil ratio for crisp response, less smoke and odor, and smooth operation. Yamaha's exclusive corrosion protection featuring self sacrificing annodses, Yamaha's YDC30 marine grade aluminium alloy and 5 stage painting process keeps the engine looking its best and operating in great condition long into its life.


  • Year: 2022
  • Warranty: 3 years


  • Engine Type 2-Stroke, In-line 2
  • Bore x Stroke (mm) 72 x 61
  • Fuel Tank Capacity (l) 24.0
  • Displacement (cc) 496.0
  • Recommended Maximum RPM 4500-5500
  • Fuel Management Carb
  • Ignition CDI
  • Lubrication System Pre-mixing
  • Alternator Output Optional with rectifier
  • Gear Ratio 2.08 : 1
  • Starter System Manual
  • Operation Method Tiller handle
  • Trim and Tilt Method Manual tilt

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