is a suzuki jr 50 a 2 stroke
Suzuki JR50 The Suzuki JR50 is a miniature motorcycle with a 49Â cc displacement and a single-speed automatic transmission, using a centrifugal clutch and height adjustable suspension. An oil injected two-stroke engine provides optimum lubrication and an oil level window makes it easy to see when a refill is needed. It is designed for children ages 5 to 12, and has been used for both racing and recreational riding. The JR50's engine was later used in the ALT50 and LT50 ATV's.
Two-stroke oil Unlike a four-stroke engine, whose crankcase is closed except for its ventilation system, a two-stroke engine uses the crankcase as part of the induction tract, and therefore, oil must be mixed with gasoline to be distributed throughout the engine for lubrication.[1] The resultant mix is referred to as petroil.[2] This oil is ultimately burned along with the fuel as a total-loss oiling system. This results in increased exhaust emissions, sometimes with excess smoke and/or a distinctive odor.