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Yamaha YZ125 - 2012 Specifications and Reviews

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General information

CategoryCross / motocross
Year2012
ModelYamaha YZ125

Engine and Transmission Specifications

ClutchMultiplate, wet
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionCDI
Fuel systemCarburettor. Mikuni TMX 38
Bore x stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Compression8.6:1
Engine detailsReed-valve inducted
Engine typeSingle cylinder, two-stroke
Capacity:124.00 ccm (7.57 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter245 mm (9.6 inches)
Rear brakesSingle disc. Hydraulic
Front brakes diameter250 mm (9.8 inches)
Front brakesSingle disc. Hydraulic
Rear tyre dimensions100/90-19
Front tyre dimensions80/100-21
Rear suspension travel315 mm (12.4 inches)
Rear suspensionFully adjustable single shock
Front suspension travel300 mm (11.8 inches)
Front suspensionSpeed-sensitive system inverted fork
 
 

Physical measures and capacities

Fuel capacity7.95 litres (2.10 gallons)
Wheelbase1,443 mm (56.8 inches)
Ground clearance386 mm (15.2 inches)
Overall length2,136 mm (84.1 inches)
Overall height1,316 mm (51.8 inches)
Seat height998 mm (39.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc94.4 kg (208.0 pounds)

Other specs

LightDual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light
StarterElectric
Wheelbase1,270 mm (50.0 inches)
Overall width1,171 mm (46.1 inches)
Rear tyre20/10-9
Front tyre21/7-10
Rear SuspensionCast aluminum swingarm w/piggyback High/Low speed compression, rebound and threaded preload adjustment, 11.0-in travel
Front SuspensionIndependent double wishbone, w/Kashima coated piggyback shocks, High/Low speed compression, rebound
Frame typeHybrid steel and aluminum frame with a Controlled- Fill aluminum subframe and cast aluminum swingarm
Driveline2WD; Sealed O-Ring Chain, Eccentric Adjustment
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Valves per cylinder5
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Compression11.6:1
ModelYamaha YFZ450X SE
Color optionsBlue/White
Factory warranty30 Days

Rider Reviews

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