These are the known mechanical and performance specifications for your 2005 Yamaha YZ 125.
Basic Specs
Engine
Displacement124.00 ccm (7.57 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression8.7:1
Bore/Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Valves/Cylinder1
FuelingCarburettor
Ignition
Exhaust
Lubrication
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity7.94 litres (2.10 gallons)
Emissions
Chassis
Frame Type
Rake27.1°
Trail
Front Suspension48mm Kayaba inverted cartridge fork w/adjustable compression and rebound damping
Front Travel300 mm (11.8 inches)
Rear SuspensionKayaba single shock w/adjustable preload, compression and rebound damping and separate hi/lo-speed compression adjusters
Rear Travel315 mm (12.4 inches)
Seat
Seat Height993 mm (39.1 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,318 mm (51.9 inches)
Total Length2,134 mm (84.0 inches)
Total Width828 mm (32.6 inches)
Ground Clearance401 mm (15.8 inches)
Wheelbase59 mm (2.3 inches)
Dry Weight
Wet Weight
Wheels & Brakes
Front Tire/Tyre80/80-21
Rear Tire/Tyre100/90-19
Front BrakesSingle disc
Front Brake Diameter250 mm (9.8 inches)
Rear BrakesSingle disc
Rear Brake Diameter245 mm (9.6 inches)
Wheels
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