Yamaha YS125

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Yamaha-ys125-2018-4.jpg
Yamaha YS125
Manufacturer
Production 2018 - 2019
Class Naked
Engine
single cylinder, four-stroke
Bore / Stroke 52.4mm x 57.9mm
Compression ratio 10.0:1
Horsepower 10.19 HP (7.6 KW) @ 7500RPM
Torque 7.97 ft/lbs (10.8 Nm) @ 6000RPM
Ignition tci
Transmission Gear box: 5-speed

Final Drive: chain

Clutch: wet, multiple-disc coil spring
Suspension Front: telescopic forks
Rear: swingarm
Brakes Front: single disc
Rear: expanding brake (drum brake)
Front Tire 2.75-18
Rear Tire 100/80-18
Wheelbase 51.97 inches (1320 mm)
Length 78.94 inches (2005 mm)
Width 28.94 inches (735 mm)
Height 41.34 inches (1050 mm)
Seat Height 31.3 inches (795 mm)
Weight 129.0 kg (wet)
Oil Capacity 0.32 Gallon (1.20 Liters)
Recommended Oil Yamalube 10w-40
Fuel Capacity 3.7 Gallon (14.00 Liters)
Manuals Service Manual


The Yamaha YS125 was a single cylinder, four-stroke Naked motorcycle produced by Yamaha between 2018 and 2019. Max torque was 7.97 ft/lbs (10.8 Nm) @ 6000 RPM. Claimed horsepower was 10.19 HP (7.6 KW) @ 7500 RPM.

Engine[edit | edit source]

The engine was a air cooled single cylinder, four-stroke. A 52.4mm bore x 57.9mm stroke result in a displacement of just 125.0 cubic centimeters. Fuel was supplied via a single overhead cams (sohc).

Drive[edit | edit source]

The bike has a 5-speed transmission. Power was moderated via the wet, multiple-disc coil spring.

Chassis[edit | edit source]

It came with a 2.75-18 front tire and a 100/80-18 rear tire. Stopping was achieved via single disc in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic forks while the rear was equipped with a swingarm. The YS125 was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The wheelbase was 51.97 inches (1320 mm) long.

2018 Yamaha YS125[edit | edit source]

2018 Yamaha YS125 2018 Yamaha YS125 2018 Yamaha YS125 2018 Yamaha YS125 2018 Yamaha YS125

Smooth handling and easy steering come as standard thanks to the plush suspension and 18-inch wheels - and the 14-litre fuel tank gives you plenty of riding between fuel stops.