Help IDing a bike please.

Hope this is the correct forum. I found a couple other threads asking for identification help here. The bike pictured was purchased by a friend. The wiring was awful, cold solders, fraying insulation, no shrink wrap and crappy terminals. I'm assuming an owner got a hold of it and it doesn't come from the factory like that. In any case if anyone can ID it and suggest a resource for wiring diagrams he would appreciate and me too. I ride a 2002 Triumph Bonneville.Attachment 7265Attachment 7266Attachment 7267Attachment 7268

Totally forgot I have the following info from the bike. Rakita on a sticker the rest smudged or destroyed. LCI139FMB and 070416601 stamped on plate(I figured out what that means thanks to this forum). Engine family 63JNC100ACF.

Thanks again, Eric

LC139FMB is a 50cc made by Loncin.