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Yamaha 25B

Yamaha 25B

If you’re after no nonsense, lightweight, two stroke power, Yamaha’s 25B ticks all the boxes. 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.
Engine Type2-Stroke, In-line 2
Bore x Stroke (mm)72 x 61
Recommended Maximum RPM4500-5500x
Displacement (cc)496.0
Fuel ManagementCarb
Lubrication SystemPre-mixing
Alternator OutputOptional with rectifier
Gear Ratio2.08 : 1
Starter SystemElectric
Operation MethodTiller handle
Digital Gauges
Command Link Gauges
Transom Height (mm [inch])L: 550 [21.7]
Dry Weight (kg)L: 55

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