At the heart of the 2012 Yamaha Grizzly 300 Automatic atv motorcycle, Yamaha utilizes a 287 cc (17.5 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 75.0 x 65.0 mm (3.0 x 2.6 inches) with a 8.6:1 compression ratio.
On the scales, the Grizzly 300 Automatic measures 231.8 kg (511 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 792 mm (31.2 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,199 mm (47.2 in) wheelbase engineered for quick, flickable steering geometry. The 10.6-liter (2.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 2012 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
792 mm (31.2 in)
Engine
Displacement287.0 ccm (17.51 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression8.6:1
Bore x Stroke75.0 x 65.0 mm (3.0 x 2.6 inches)
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveShaft drive (cardan) (final drive)
Chassis
Front SuspensionIndependent double wishbone
Front Travel150 mm (5.9 inches)
Rear SuspensionSwingarm
Rear Travel165 mm (6.5 inches)
Wheelbase1199 mm (47.2 inches)
Ground Clearance137 mm (5.4 inches)
Wheels & Brakes
Front Tyre25/8-12
Rear Tyre25/10-12
Front BrakesDouble disc. Hydraulic
Rear BrakesSingle disc
Dimensions & Weight
Weight incl.231.8 kg (511.0 pounds)
Seat Height792 mm (31.2 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.
