Where does the wire from alternator hook up too

SOURCE: where to plug negative terminal on OEM heated grips?

any strait black wire or a good chassis ground.

SOURCE: My yamaha ttr90 wiring

you should be able to repair the harness just solder the wires and heatshrink the connection
the new harness costs
see pic
WIRE HARNESS ASSY
(5HN8)299268-001 $6.85

SOURCE: location of wiring harness for lights on a Yamaha Venture motorcy

best place to start is behind your back light then follow wires to a place where you want to splice in your trailer socket

SOURCE: I don't understand my wiring diagram.How does the

Hi and welcome to FixYa,

If the starter relay in your version uses blue / white and red / white wires, then to my understanding, connection would be:

• blue / white - goes to the start switch and is supplied with +12 on starting;
  
• red / white - goes to the starter circuit cut-out relay. This cut-out relay controls whether the starting relay gets a ground based on neutral/gear and clutch lever conditions.
  

SOURCE: 1995 yzf 750 wiring diagram, starts wont rev

Hi and welcome to FixYa,

Would the wiring of a 95 YZF750 R/SP European model help?

Good luck and thank you for asking FixYa.

Testimonial: "the blue yellow black wires i was looking for appear to be for tps unit whitch is missing thanks this gets me going in correct direction "