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Key Specifications
Engine
Single cylinder, two-stroke
Weight
94.8 kg / 209.0 lbs
Fuel Capacity
6.81 litres / 1.80 US gallons
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Full 2022 Yamaha YZ125 Specifications
Colours
Team Yamaha Blue
Warranty
30 Day Limited Factory Warranty
Ground Clearance (mm)
366 mm
Ground Clearance (in.)
14.4 inches
Seat Height
39 mm / 1.5 in.
Wheelbase
1445 mm / 56.9 in.
Height
1295 mm / 51.0 in.
Length
2136 mm / 84.1 in.
Width
826 mm / 32.5 in.
Oil Capacity (Quarts)
0.74 US quarts
Oil Capacity (l)
0.70 litres
Fuel Capacity
6.81 litres / 1.80 US gallons
Wet Weight
94.8 kg / 209.0 lbs
Engine Type
Single cylinder, two-stroke
Displacement (ci)
7.63 cubic inches
Bore x Stroke (in,)
2.1 x 2.1 inches
Bore x Stroke (mm)
54.0 x 54.5 mm
Displacement (cc)
125.0 cc
Engine Detail
Reed-valve-inducted
Fuel System
Carburettor. Keihin PWK38S
Compression Ratio
10.7:1
Engine Lubrication
Premix
Ignition
Digital CDI
Spark Plug
NGK BR9EVX, NGK BR9EIX
Starter
Kick
Clutch
Multiplate wet clutch
Final Drive
Chain (final drive)
Gearbox
6-speed
Primary Drive
Constant-mesh
Fork Tube Size (in.)
1.9 inches
Fork Tube Size (mm)
48 mm
Frame Type
Aluminum semi-double cradle
Suspension - Front
KYB® Speed-Sensitive System inverted fork; fully adjustable
Suspension - Rear
KYB® single shock; fully adjustable
Rake
26.0°
Trail
109 mm / 4.3 in.
Wheel Travel - Front
300 mm / 11.8 in.
Wheel Travel - Rear
315 mm / 12.4 in.
Brakes - Front
Single disc. Hydraulic.
Brakes - Rear
Single disc. Hydraulic.
Tyre Pressure - Front
15 PSI (1 Bar or 100 kPa)
Tyre Pressure - Rear
15 PSI (1 Bar or 100 kPa)
Tyres - Front
80/100-21
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