yamaha ysr50 with derbi gpr50 motor in it 5 Likes Follow Build View Build Builder: bobby costello Updated 2012-09-21 21:29:18 Moped: 1991 Yamaha YSR-50 15069 Builds : Derbi GPR50 15069 Builds : charmo 80cc 15069 Builds : arrow : : 15069 Builds Buy : Mikuni 26mm VM Main Jet: 210
