2002 Yamaha YZ 85 LW Technical Analysis & Specification Breakdown
At the heart of the 2002 Yamaha YZ 85 LW cross - motocross motorcycle, Yamaha relies on a 84.7 cc (5.2 cu in) liquid-cooled single cylinder, two-stroke powerplant. Internal engine geometry specifies a bore and stroke of 47.5 x 47.8 mm (1.9 x 1.9 inches) with a 8.2:1 compression ratio.
On the scales, the YZ 85 LW measures 69 kg (152 lbs) dry. Rider ergonomics and chassis geometry center around a 902 mm (35.5 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,278 mm (50.3 in) wheelbase engineered for quick, flickable steering geometry.
Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 2002 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
902 mm (35.5 in)
Engine
Displacement84.7 ccm (5.17 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Compression8.2:1
Bore x Stroke47.5 x 47.8 mm (1.9 x 1.9 inches)
CoolingLiquid
Chassis
Front Travel275 mm (10.8 inches)
Rear Travel287 mm (11.3 inches)
Wheelbase1278 mm (50.3 inches)
Ground Clearance391 mm (15.4 inches)
Wheels & Brakes
Front Tyre70/100-19 42M
Rear Tyre90/100-16 52M
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc
Rear Brake Ø190 mm (7.5 inches)
Dimensions & Weight
Dry Weight69.0 kg (152.1 pounds)
Seat Height902 mm (35.5 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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
