Hi guys , i know i have asked this before but, i have got a KDX250 1992F - whitch i think equates to what you would call an sr model, it used to have oil injection ect, what i would like to know is, what parts can i use on it if i want to buy piston, rings reeds ect, will aftermarket products fit ?, i know the carby is smaller on this bike can i improve it ?, it has an fmf pipe from a KX 250 Whitch fits perfectly, if any one can help with any mods and parts that are compatible with this model that would be great, my dealer keeps telling me that everything is different for this model , and is ex japan - what are your thoughts , thanks