KX125 Cylinder Swap

Anyone know if the cylinder off an 06 KX125 will fir on an 03 KX125? Friend just bought an 08 and it came with an 06 cylinder and I want to buy it off him. Thanks :)

if you use all the 06 parts it would fit not sure if the jug n head are different from the 03 or if the pv parts are different. the 03 has the one off year of having the piston with the locating ring off centered from the intake port. in 04 they went back to having the ring locating pin center lined with the intake port, minor porting changes new pro circuit copy pipe and a shorter / straighter rubber carb intake manifold.

most of the other changes where to coinside with the slightly different frame cause of the linkage change they did.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now