hi! does anybody know the difference between the wr400f '00 models "5GS6" and "5GS5" ? is it us / european model names? the background is: im from germany and now on holidays in florida. i've had some sand inside the motoroilsystem and it destroyed the piston, several bearings and so on. i've found out that most dirtbike parts are MUCH (!!!!) cheaper over here. for example a piston costs about 127 euro, here it's like 100 bucks or something depending on the store you choose. or crankshaft bearings... here 33 at home 67 euro... (im still at scholl, so thats a very big difference!) the only problem is that i dont know if i can use 5gs5 parts in my 5gs6... can anybody help me? or can i order 5gs6 parts here? which shops can you recommend? i know that there are some differnces concerning carburator/jetting settings and so on, but there should be different parts in an european and an us wr... or am i wrong?