Wont start how to start the bike with a wire from battery to cylinoid

Try to push start hopefully you know how if not have someone push you I would use a car only need to go like 5mph make sure your in first gear holding the cluch when you get up to speed let go of the clutch it should pop start up if not then check the starter or check any wires you may not have on proper

Some thing to do with your wiring

Sounds like you still have a bad starter. You can get a bad one from the parts store. Go back and have them test it. Or could be cylinoid.

the safety switches go bad more like the one for the brake/clutch pedal try and jump it with a paper clip to test it

It sounds like a bad starter. You can take it to an auto parts store and have them check it. If it is not the starter then check to make sure there is power to the starter. Then take a test light and check that there is power at the main battery cable that hooks to the starter cylinoid. If there is power there, check both of the small posts ( one that has a wire to it) With the key in the start position, check power on the small terminal of the cylinoid. If you have power there, you have a bad starter, if not then you may have a bad switch. I would start by taking the starter to the parts store first.

reset alarm system....then try

do you have enough power going to starter selinoid

its possibly the cylinoid or the ignition try testing the starter, let me know if that works...

You have to check the starter motor,prolly the brushes are gone . Also check the connections from battery to the solenoid and from the solenoid to the starter.

Good Luck.
Knight (Yamaha seca XJ750A 1981)

This sounds like a weak battery or corrosion on the battery cable connections. The sound you hear is the relay and not the cylinoid.