A 2 stroke.
yes a yz is two stroke so any yz is 2 stroke but if it has an f on the end its a 4 stroke so a yz250 is two stroke a yz250f is 4 stroke
Yz 85 all the way 2 stroke 85 =170 4 stroke
its a 4 stroke they have always been 4 strokes
It is a 4 stroke.All large capacity motorbikes now are 4strokes.
4 stroke
2 stroke
it is a 2 stroke
4-stroke... The 400 is a 2-stroke
i say that a 4 stroke is faster than a 2 stroke
4 stroke
4 Stroke