May not be easy to find but if you get Ver S..most of the wire by colour code is the same. Have to check around with some of the bike shop..or perhaps asked themt o source for you. If worst comes to the worst..you can start rewiring wires by wires by cutting off the part of the hardness just before the portion that near the handle bar stem where when u turn the handle..that harness moves and get stretch and broke. You have to use new wires of your own just to repair one by one following the colour code. Tedious process but solve the problem. For your problem..it is likely the starter switch wire that may only be broken..but check your switch contact first..spray some WD40 into the starter witch housing.