I have a rosd king maxi mobility scooter on the electrics at the back all the wires has come off

The circuit breaker might have tripped. Somewhere near the battery there should be a small black button. It is often near the plug socket for charging. Push in this button for about 2 seconds, wait about 30 seconds then try the scooter. This should reset the scooter's electrical system.
If you get no response contact the company who fitted the battery. They can check the wiring and check it hasn't been left in some sort of 'service' mode.

https://www.google.co.uk/search?q=Nissan+king+cab+truck+ignition+system&tbm=isch&tbo=u&source=univ&sa=X&ei=T3CHVMrwGoK6acyzgtgD&ved=0CD4QsAQ&biw=1252&bih=590#facrc=_&imgdii=_&imgrc=yzhq3tz00BusCM%253A%3Bpo6xjjN1R5li7M%3Bhttp%253A%252F%252Fwww.partsbase.org%252Fmedia%252Fimages%252Fnissan%252F56%252F56ab5d24d3cc3c6f22371ee4e980c27f.png%3Bhttp%253A%252F%252Fwww.partsbase.org%252Fnissan%252Fpickup-720-us-k-cab-z24i-st-f5-long-4wd-fed-engine-electrical-ignition-system%252F%3B1024%3B548


here is the google search i used
it brings up the full blowup details etc
you can look thru and find the details you need
there is a few different configs best you check it out

follow this link for a manual etc for your scooter
Freedom Electric Scooter Parts ElectricScooterParts com

this is cars and trucks try scooters or near
i bet motorcycle is better than cars.?

http://www.fixya.com/motorcycles/troubleshoot

Disconnect big red power wire from alternator then turn on key . if fuse is good alternator is no good

I cut reversing feed wire to the beeper while still maintaining the horn beep. You have to know what you are doing though as on scooters they switch the earth/neutral rather than the live as in mains electrics.
There is a better way though. I believe a scooter shop can disable the reversing beep via the scooters drive computer. They just plug their laptop in and do some jiggery pokery.

It is the fusable link connector.
The green wires and red wires are the fusable links.
(If the is a magor short in the electrical system they are designed to act like a fuse and burn through instead of the rest of the trucks wiring.)

Hey Willy..The maxi fuse is located under the coil pack. Remove the four screws (9/32" socket) and look about 8" below where the coil pack was sitting. You may have to remove one of the spark plug wires to be able to move the coil pack out of the way. The maxi fuse looks like a box about one inch wide and four inches long with a red battery type wire coming out of each end. With a multimeter set on continuity check for continuity on each end of the "box" by touching both wire ends with the probes. If there is continuity the fuse is good if there is no continuity then your altenator may be shot. Go to a parts dealer or equivilant and have your altenator tested before you try to remove/replace it. Hope this helps..WF

its probly a stripped wire in the back wher the wires split 2 go 2 each side. check the red wire with wire tester 2 locate wher you have power up 2