I assume you know about the R 748, but just in case, make sure its the real deal, (in the uk anyway) the R should have 3 Injectors (have a look under the tank) and the pipes should be 50mm version. everything else was more or less the same as the others,

Remeber to take it to a track. itll all become clear, and errrr emmm change the screen its to high standard one is best