I had a question about how to find out what size motor my dirtbike has. The dirtbike is missing a few things on it, and I am unsure of what size motor it has, when I bought the bike I was told it was a 1993 Kawasaki KDX250. But when I looked at the Emissions label I saw that it says "Applicable to 1991 year" which makes me think that it is a 1991... Also I looked it over and saw that it has a marking on the motor that says "DX200" is this a 1991 KDX200? Can anyone tell me how to find out what this bikes motor and production year are, and or if I am correct at figuring it out to be a '91 KDX200. Any help would be appreciated. Thanks.