yz85 2020 info:Engine Type. 85cc liquid-cooled 2-stroke; reed-valve inducted ; Bore x Stroke. 47.5mm x 47.8mm ; Compression Ratio. 8.2~9.6:1 ; Fuel Delivery. 2020 Yamaha YZ85 specifications, pictures, reviews and rating ; Frame type, Semi-double-cradle frame ; Rake (fork angle), 26.3° ; Trail, 89 mm (3.5 inches) ; Front. yz85 2022 info: The 2022 Yamaha YZ85lw retails for $4,999 (compared to $4799 for the standard YZ85). It comes with bigger wheels, a 26mm-longer swingarm, stiffer front fork spring rate and firmer valve settings both front and rear on the suspension. Otherwise, the bike is identical. polaris scrambler 90cc information is It has a bore-stroke ratio of 52 x 42 mm (2.05 x 1.65 inches). The engine displacement is 89.2 cm3 (5.44 in3) delivered by a Mikuni AM7 carburetor with automatic choke, and its compression ratio is 5.8:1. Fuel tank capacity is 1.32 US gallons (5 Liters) of unleaded gasoline with a PON rating of 87 (oxygenated).