Hi , new to this forum had a question I was hoping u could help with . I have a 1999 Yz 125 with blown motor. And just picked up a 2001 yz 250. Does anyone know what parts are interchangeable between those two bikes. Example can I swap the front shocks ? Or are the frames the same? Can I swap the swingarms ? What can I use off the 125? Are the radiators the same? Any help greatly appreciated .
Radiators maybe, the inlets are different sizes. You need to compare them side by side.
Front shocks, no such thing. The front forks are valved and sprung different for the two bikes. The 2001 will probably have a larger diameter, measure them.