These are the known mechanical and performance specifications for your 2012 Yamaha YZ125.
Basic Specs
Engine
Displacement124.00 ccm (7.57 cubic inches)
TypeReed-valve inducted
DetailsSingle cylinder, two-stroke
Max RPM
Compression8.6:1
Bore/Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Valves/Cylinder
FuelingCarburettor. Mikuni TMX 38
IgnitionCDI
Exhaust
LubricationWet sump
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity7.95 litres (2.10 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionSpeed-sensitive system inverted fork
Front Travel300 mm (11.8 inches)
Rear SuspensionFully adjustable single shock
Rear Travel315 mm (12.4 inches)
Seat
Seat Height998 mm (39.3 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,316 mm (51.8 inches)
Total Length2,136 mm (84.1 inches)
Total Width
Ground Clearance386 mm (15.2 inches)
Wheelbase1,443 mm (56.8 inches)
Dry Weight
Wet Weight94.4 kg (208.0 pounds)
Wheels & Brakes
Front Tire/Tyre80/100-21
Rear Tire/Tyre100/90-19
Front BrakesSingle disc. Hydraulic
Front Brake Diameter250 mm (9.8 inches)
Rear BrakesSingle disc. Hydraulic
Rear Brake Diameter245 mm (9.6 inches)
Wheels
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