Positioned in Yamaha's atv motorcycle lineup, the 2023 Yamaha Grizzly 90 features a 90 cc (5.5 cu in) air-cooled single cylinder, four-stroke configuration. Internal engine geometry specifies a bore and stroke of 47.0 x 51.8 mm (1.9 x 2.0 inches) with a 9.2:1 compression ratio.
On the scales, the Grizzly 90 measures 139.7 kg (308 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 729 mm (28.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,031 mm (40.6 in) wheelbase engineered for quick, flickable steering geometry. The 6.43-liter (1.7 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 2022 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
729 mm (28.7 in)
Engine
Displacement90.0 ccm (5.49 cubic inches)
Engine TypeSingle cylinder, four-stroke
Compression9.2:1
Bore x Stroke47.0 x 51.8 mm (1.9 x 2.0 inches)
Valves/Cylinder2
Fuel SystemCarburettor. 13 mm
Fuel ControlSingle Overhead Cams (SOHC)
CoolingAir
Transmission
GearboxAutomatic
Final DriveChain (final drive)
DrivelineContinuously Variable Transmission; F, N, R. O-ring chain.
Chassis
Front SuspensionSingle A-arm
Front Travel127 mm (5.0 inches)
Rear SuspensionMonoshock swingarm
Rear Travel145 mm (5.7 inches)
Wheelbase1031 mm (40.6 inches)
Ground Clearance104 mm (4.1 inches)
Wheels & Brakes
Front Tyre19/7-8
Rear Tyre18/9-8
Front BrakesExpanding brake (drum brake). Dual
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Weight incl.139.7 kg (308.0 pounds)
Seat Height729 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.
