Engineered by Yamaha for the atv motorcycle segment, the 2012 Yamaha YFM250R pairs a 249 cc (15.2 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 74.0 x 58.0 mm (2.9 x 2.3 inches) with a 9.5:1 compression ratio.
On the scales, the YFM250R measures 150 kg (331 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 730 mm (28.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,110 mm (43.7 in) wheelbase engineered for quick, flickable steering geometry. The 9-liter (2.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 2009 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
730 mm (28.7 in)
Engine
Displacement249.0 ccm (15.19 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsCeramic-plated cylinder
Compression9.5:1
Bore x Stroke74.0 x 58.0 mm (2.9 x 2.3 inches)
Valves/Cylinder2
Fuel SystemCarburettor. Mikuni BSR 29 mm
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionDC-CDI
LubricationWet sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Driveline2WD. Sealed O-ring chain.
Chassis
Front SuspensionIndependent double wishbone, 5 position preload adjustable spring, 190 mm stroke
Rear SuspensionSwingarm, 5 position preload adjustable spring, 200 mm stroke
Wheelbase1110 mm (43.7 inches)
Ground Clearance100 mm (3.9 inches)
Wheels & Brakes
Front Tyre20/7-10
Rear Tyre19/10-9
Front BrakesDouble disc. Hydraulic
Rear BrakesSingle disc. Hydraulic
WheelsLightweight aluminium rims
Dimensions & Weight
Weight incl.150.0 kg (330.7 pounds)
Seat Height730 mm (28.7 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
