diagram

So the previous owner did a nice hack job on this bike and I'm restoring it into a bobber/chopper. They had ape hangers on the bike and I noticed the blinkers didn't work and was missing a low beam for the headlight but have high beam and the horn didn't work so I opened up the switch and it...

I have a Suzuki gs450 engine, i dont know the year or model but the number on the motor is GS450-130177. Can anyone tell me the details about that number? What it all comes down to is findind an accurate wiring diagram for it. Thanks to anyone that can help.