Complete Electrical Failure

I had an intersting moment riding around a fast corner for the bike to cut out and someone riding behind me nearly ran into me!

[kbh]

right..tried the connections down the sides of the headstock and eveything is tight there. I did actually try the wires on the starter relay when it went as the 12v fused feed for the alarm was tapped into this and i still had the side cover off from when i stripped the bike to remove the alarm. so these contacts are ok there i think.
It only seems to happen once the bike has warmed up, never after it's been sitting for a while?
Any 1 any other suggestions?

[dizzyblonde]

Have you had a look at the sidestand switch. That stops the motor when its in gear. Could it possibly be loose or damaged and playing games with you while your riding. Its a common fault.

Faulty Alarm?

When you say cut out... did you loose everything?

[kbh]

Thanks Dizz...no i havn't tried the side stand switch yet, found a post on the by-pass for it but will probably have to wait to try it given that requires some re-wiring it will have to be my mate who will need to do it for me and he ain't around for a week or so.
Alarm was removed on Saturday after after i got a lift from friendly white van man - The alarm was removed because i thought it was this that was stopping it.

When i say everything....i mean everything...it was almost like someone had come along and knicked the battery while i was riding...bike stalls and all electrics go and if i leave the bike exactly the way it was when it stalls, walk back to it 20mins laters, don't touch anything, just turn the igntion key...eveything works perfect again and she starts on the button - Just seems to die like this after she's warmed up, never from starting cold in the mornings or as i just put, go back 20mins later and eveything is fine but it will then do the same maybe 30seconds later or it could be 3miles further down the road.

Sound like a starter relay breaking down to me, replace it.

[kbh]

Looks like Grinch was on the button with it being the starter relay.....
She broke down again last night . I thought maybe i would try a jump start with some leads (which didn't work) and after for some reason i thought i would just check the fuses to make sure nothing blew, they were all ok. Then i thought i'd make sure the main 30a fuse hadn't gone either and i removed it and it was fine and i was pushed it back in the lights came back on. It seems the fuse doesn't quite stay in place in one corner - only by a couple of mm so while it looks as though it is in there ok, which it is, but over time it slowly pushes itself out ever so slightly out on one edge, just enough to break contact/give intermiitent power. So i have now taped it in with electricl tape and seems to have cured it and drrove all the way home like a dream.

Thanks guys for all your help & suggestions on this one - Much appreciated.

i have the exact same problem, only started two days ago and its been driving me absolutely insane. i could not have described my problem any better than you did. i am hoping it is the same simple remedy for me also! i just couldn't fathom why it would start fine, then 2 miles down the road, sometimes 200 yards down the road i would have a complete and total electrical failure. sometimes 2 mins after i'd get electrics back, sometimes 2 hours, it really was just random. i'm crossing everything its this simple fix for me too

just as an add, i have a meta alarm/immobiliser and thought it might be this and was contemplating trying to remove today, perhaps i'll just hold off on that removal as it looks stupidly complicated (which i guess is what its meant to do to deter thieves)

You can also have a starter soleniod that has a dodgy connection between the battery cable and main fuse where it has rusted away aswell as the fuse blades being crudded up