Not at all...

Update: Even with the car battery the bike won't start
:(:(:(:(:(:(:(:(:(

It seems something is telling to the starter engine to stop starting the bike after a very short time. Does it ring a bell?

Where is the starter motor connection?

HMM, I would still swap the relays over, As you said about yours clicking, mine were too, but that may not mean that it is switching the main properly.
Just a thought tho, Stick it in gear and see if it turns over??
Glyn

Tonio its under the starter motor, A rubber boot usually full of rust, you cant miss it.
Glyn

ok, I'm off to the garage again...

your webcam link doesnt work i was going to watch you **** about LOL

I turned it off when I started feeling ridiculous :lol:

I've done what Skid suggested, the problem doesn't come from the starter motor, it works fine when directly connected to the battery.

I've done what you suggested, it doesn't come from the relay, I tested it on my road bike and it works fine (I mean the yellow one which is underneath the seat. btw is there another relay I could check?)

Any idea? :(

Starter solenoid ???
next place to start.

what's that? :lol:

let's see if I can find it...