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YZ250
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- Make:
- YAMAHA
- Model:
- YZ250
- Year:
- Current
YZ250 - Ultimate 2-stroke
What do an army of freestylers, motocross riders, hard-core weekend trailriders and elite level cross-country racers have in common? A passion for the punchy two-stroke power and agility, latest chassis technology and easy-on-the-wallet upkeep of Yamaha’s YZ250.
Key Features:
♦ 249cc liquid-cooled reed-valve-inducted two-stroke engine is lightweight, compact and features an incredibly wide, hard hitting powerband.
♦ Smooth-shifting, fi ve-speed, close-ratio transmission with heavy-duty, multiplate clutch.
♦ YZ250F-style front-brake caliper and wave type front and rear discs minimise unsprung weight and provide excellent stopping power.
♦ 48mm forks feature the Speed-Sensitive System that uses piston speed to control damping force for super-precise handling and a smooth ride.
♦ 38mm Keihin PWK carburettor with power jet and throttle position sensor (TPS) ensures precise fuel/air mixing and extra-crisp throttle response throughout the powerband.
♦ Patented YPVS power-valve system combines crisp, hard-hitting, bottom-end acceleration with strong midrange and eye-opening top-end.
♦ Large-capacity radiator features a ten row core with four louvres for maximum cooling efficiency.
♦ Digital CDI ignition system delivers precise spark for faster, stronger response anywhere in the powerband.
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| ENGINE/IGNITION/TRANSMISSION | ||
| Type | Liquid-cooled, 2-stroke, reed valve, forward-inclined single cylinder, with YPVS | |
| Displacement - (cc) | 249 | |
| Bore Stroke - (mm) | 66.4 x 72.0 | |
| Compression | 8.9 - 10.6:1 | |
| Lubrication | Premix | |
| Fuel Management | Keihin PWK38S/1 | |
| Ignition | CDI | |
| Starter | Kick | |
| Fueltank - (L) | 8 | |
| Oil Capacity - (L) | 0.8 | |
| Transmission | Constant mesh, 5-speed | |
| Final Transmission | Chain | |
| CHASSIS | ||
| Frame Type | Alu semi-double cradle | |
| Length - (mm) | 2178 | |
| Width - (mm) | 827 | |
| Height - (mm) | 1306 | |
| Seat Height - (mm) | 994 | |
| Wheelbase - (mm) | 1481 | |
| Clearance - (mm) | 382 | |
| Dry Weight - (kg) | 104 | |
| FRONT END | ||
| Suspension Front | Telescopic forks | |
| Tyres Front | 80/100-21 51M | |
| Brakes Front | Single disc, ø 250 mm | |
| REAR END | ||
| Suspension Rear | Swingarm (link suspension) | |
| Tyres Rear | 110/90-19 62M | |
| Brakes Rear | Single disc, ø 245 mm | |
