| Engine |
| Engine type | 2-stroke, liquid cooled, single cylinder, with YPVS |
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| Displacement | 249 cc |
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| Bore x stroke | 66.4 x 72.0 mm |
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| Compression ratio | 9-10.6 : 1 |
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| Lubrication system | Premix |
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| Fuel System | Keihin PWK38S/1 |
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| Clutch type | Wet, multiple-disc |
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| Ignition system | CDI |
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| Starter system | Kick |
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| Transmission system | Constant mesh, 5-speed |
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| Primary reduction ratio | 63/21 (3.000) |
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| Secundary reduction ratio | 49/14 (3.500) |
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| Final transmission | Chain |
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| Ratios gearbox 1st | 27/14 (1.929) |
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| Ratios gearbox 2nd | 23/15 (1.533) |
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| Ratios gearbox 3rd | 23/18 (1.278) |
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| Ratios gearbox 4th | 24/22 (1.091) |
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| Ratios gearbox 5th | 20/21 (0.952) |
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| Chassis |
| Chassis | Alu semi-double cradle |
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| Front suspension system | Telescopic fork |
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| Front wheel travel | 300 mm |
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| Rear suspension system | Swinging arm (Monocross) |
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| Rear wheel travel | 315 mm |
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| Caster angle | 27° 00' |
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| Trail | 117 mm |
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| Front brake | Single disc, Ø 250 mm |
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| Rear brake | Single disc, Ø 245 mm |
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| Front tyre | 80/100-21 51M |
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| Rear tyre | 110/90-19 62M |
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| Dimensions |
| Overall length | 2,188 mm |
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| Overall width | 827 mm |
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| Overall height | 1,310 mm |
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| Seat height | 992 mm |
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| Wheelbase | 1,485 mm |
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| Minimum ground clearance | 386 mm |
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| Dry weight | 96 kg |
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| Fuel tank capacity (reserve) | 8 L |
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Specifications and appearance of Yamaha products shown here are subject to change without notice and may vary according to requirements and conditions. For further details please consult your Yamaha dealer.
