The Yamaha YZ125 begins its history in 1974 - then it was an archaic (by modern standards) motorcycle with an air-cooled engine and double shock absorbers at the rear, which did not resemble a cross model in the modern sense. Only by the end of the 80s of the last century, the Yamaha YZ 125 acquires modern features, and by 1989 - an inverted fork. In our review, we will be looking at models starting in 2005, when the motorcycle received a modern aluminum frame.
Since 2006 the motorcycle has been equipped with the new KYB SSS (Speed-Sensitive System) front fork.
In 2007, the Yamaha YZ125 undergoes minor changes, the main of which are new petal brake discs, and in 2017 - an increased diameter of the front disc (from 250 to 270 mm).
The Yamaha YZ125 features a 2-stroke liquid-cooled engine with a power valve system (YPVS), an aluminum frame (since 2005), sports adjustable suspensions, an 8-liter fuel tank, a carburetor power system and 94 kg of curb weight.
In 2001, Yamaha introduced a 4-stroke version Yamaha YZ250F, which was intended to replace similar 2-stroke models, but the YZ125 is still sold in parallel and may be in the same racing class.
The main competitors of the Yamaha YZ 125 in the class:
Photos
Specifications
Specifications Yamaha YZ125 (2005+):
| Model | Yamaha YZ125 |
|---|---|
| Motorcycle type | cross |
| Release year | 1974+ |
| Frame | Aluminum half duplex |
| Engine type | 1-cylinder, 2-stroke |
| Working volume | 124 cm³ |
| Bore / stroke | 54.0 x 54.5 mm |
| Compression ratio | 8.6 ~ 10.7: 1 |
| Cooling | liquid |
| Number of valves per cylinder | petal valve |
| Fuel supply system | Carburetor, 1x Mikuni TMX38 |
| Ignition type | CDI |
| Maximum power | 39.0 h.p. (28.7 kW) at 11,500 rpm |
| Maximum torque | 25.5 Nm (2.6 kg-m) at 10,000 rpm |
| Gearbox | 6-speed |
| Drive type | chain |
| Front tire size | 80 / 100-21 51M |
| Rear tire size | 100 / 90-19 57M |
| Front brakes | 1 disc, 250mm, 2-piston caliper - YZ125 (up to 2017)
Single disc, 270 mm, 2-piston caliper - YZ125 (2017+) |
| Rear brakes | 1 disc, 245 mm, 1-piston caliper |
| Front suspension | 48mm inverted fork (fully adjustable), 300mm travel |
| Rear suspension | linkage with monoshock (fully adjustable), stroke - 315 mm |
| Motorcycle length | 2135 mm |
| Motorcycle width | 827 mm |
| Motorcycle height | 1315 mm |
| Wheelbase | 1443 mm |
| Saddle height | 997 mm
975 mm - YZ125 (2015+) |
| Minimum ground clearance | 386 mm
365 mm - YZ125 (2015+) |
| Acceleration to 100 km / h | |
| Maximum speed | |
| Fuel tank capacity | 8.0 l |
| Motorcycle weight (curb) | 94 kg |
Yamaha Off-Road Motorcycle Lineup
| Yamaha | ||
|---|---|---|
| 85-150 см³ | YZ85 · WR125 · YZ125 | |
| 200-250 см³ | TW200 · TW225 · Serow 225 · Serow 250 · TT-R250 · WR250F · XG250 · YZ250 · YZ250F | |
| 400-500 см³ | WR450F · YZ450F | |
| 600-750 см³ | XT660R | |
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