I recently picked up a extremely clean 2000 ds650 on a trade for some items. It was not running when I got it. When I brought it home I noticed it had a cracked starter so I replaced it along with the one way spray. Bought a new battery and hooked it up and just clicks by the solenoid. Thinking that was the problem I got a new one and put it with same result. I tightened all the wires and noticed it was a cluster so I ripped all the wiring out and bought an untouched harness and installed. Only wire that the new harness has different is a yellow wire with blue line that runs near the clutch case. I looked on the old and it did not have this wire or it was cut off at some point. With new harness in it does the exact same thing. Just clicking. I have ruled out batteries by swapping from my other 700 quad. Where should I start looking next?