Built around Yamaha's enduro - offroad motorcycle platform, the 2023 Yamaha YZ65 features a 65 cc (4 cu in) liquid-cooled single cylinder, two-stroke configuration. Internal engine geometry specifies a bore and stroke of 43.5 x 43.6 mm (1.7 x 1.7 inches) with a 9.6:1 compression ratio.
On the scales, the YZ65 measures 60.8 kg (134 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 754 mm (29.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,140 mm (44.9 in) wheelbase engineered for quick, flickable steering geometry. The 3.41-liter (0.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 5 indexed model years from 2021 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
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.
