Hi people, I have a CF400AU-L, 2021, VIN: LCELDSZ41M6003043, with 200 kilometros, I use it very little and only on the road, and from one moment to the next, the bike didn't start anymore.
The symptom is that when pressing the start button (the green one) only the starting solenoid sounds (the typical taca, taca, taca), but it does not turn on; however, if I jumper said solenide (the 2 large screws), the bike starts normally and works perfectly.
• Changed the Soleonide.
• Revised the starter motor
• Checked the fuses and relays (at least the ones you can see).
Reviewing the electrical diagram that comes in the manual, a brake relay appears, which is not on the physical motorcycle, so a green cable from the Solenoid has no idea how to follow it.
Since I live far in the country, I don't have a way to take it to a service and I don't want it to be intruded on by local mechanics.
I would really appreciate if you could help me, at least by sending me the correct diagram of this motorcycle.

[2015 Z Force 800 53/Trail EPS]

Well, either the starter solinoid isn't getting full power or it has a poor ground. Test the incoming coil power. If it is equal to the static...or near static battery power, at least 12.4 volts, it's likely a bad common or ground. If not, look to a bad connection...and don't rule-out a bad starter button.
Also load test the battery...many have failed.

Jump the signal line on the solenoid from the the battery/power stud.  If the engine turns over, then the signal line is not providing enough power to trip the solenoid.