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Key Specifications
Engine
Single cylinder, two-stroke
Fuel Capacity
8.00 litres
Full 2020 Yamaha YZ125 Specifications
Colours
Team Yamaha Blue
Warranty
30 Day Limited Factory Warranty
Width (mm)
828 mm
Width (in.)
32.6 inches
Wheelbase (mm)
1443 mm
Wheelbase (in.)
56.8 inches
Seat Height (mm)
975 mm
Seat Height (in.)
38.4 inches
Length (mm)
2136 mm
Length (in.)
84.1 inches
Height (mm)
1295 mm
Height (in.)
51.0 inches
Ground Clearance (mm)
366 mm
Ground Clearance (in.)
14.4 inches
Wet Weight (lbs.)
207.0 pounds
Wet Weight (kg)
93.9 kg
Oil Capacity (Quarts)
0.74 US quarts
Oil Capacity (l)
0.70 litres
Fuel Capacity (l)
8.00 litres
Fuel Capacity (gal.)
2.11 US gallons
Bore x Stroke (mm)
54.0 x 54.5 mm
Displacement (cc)
125.0 cc
Displacement (ci)
7.63 cubic inches
Engine Type
Single cylinder, two-stroke
Bore x Stroke (in,)
2.1 x 2.1 inches
Engine Detail
Reed-valve-inducted
Fuel System
Carburettor. Mikuni TMX 38
Compression Ratio
10.7:1
Engine Lubrication
Premix
Ignition
CDI
Starter
Kick
Clutch
Multiplate wet clutch
Final Drive
Chain (final drive)
Gearbox
6-speed
Trail (in.)
4.3 inches
Trail (mm)
109 mm
Wheel Travel - Front (in.)
11.8 inches
Wheel Travel - Front (mm)
300 mm
Wheel Travel - Rear (in.)
12.4 inches
Wheel Travel - Rear (mm)
315 mm
Frame Type
Semi-double cradle aluminium frame
Suspension - Front
KYB® Speed-Sensitive System inverted fork; fully adjustable
Suspension - Rear
KYB® single shock; fully adjustable
Rake
26.0°
Brakes - Front
Single disc. Hydraulic.
Brakes - Rear
Single disc. Hydraulic.
Rims
Dunlop® MX52
Tyres - Front
80/100-21