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The YFM90R may be small in size, but it's equipped with several features found on larger Yamaha models - including double A-arm independent front suspension, drum brakes, CVT transmission and electric start.


The YFM90R balances power with a range of features to give you total peace of mind. A simple CDI plug-in adjusts engine power output to suit different riding abilities while a parking brake on the handlebar ensures that the YFM90R stays exactly where you left it. The fully automated gearbox allows junior to concentrate on the track to build confidence.


  • Engine Type

    Air-cooled, 4-stroke, SOHC, 2-valve, single cylinder

    Displacement (cc) 90
    Bore x Stroke (mm) 47.0 x 51.8
    Compression Ratio 9.2 : 1
    Lubrication System Wet Sump
    Fuel Management H66D x 1
    Ignition CDI
    Starter System Electric and Kick
    Fuel Tank Capacity (L) 6.6
    Final Transmission Chain
    Transmission V-belt automatic, F, N, R
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