Warning Triangle and no start

Hi all,

Anyone come across this before?

Out riding bike all good for around 100 miles. Engine temp OK no other problems all warning lights out.
Stopped for fuel and would not turn-over. Warning triangle illuminated. Checked all fuses (visually) and all seem ok. Phone recovery. Guy turns up with a CRAP trailer and extremely rusty and short strops which, eventually, we managed to secure the bike with. S-l-o-w drive home.

I know the Oil Px and engine temp will cause the triangle to come on but, as far as I can remember, these will not stop the bike from turning over; just limit the revs when it does start.

Next steps:
Try diagnostic code through the Lap Timer switch/switch on method.
Check tilt switch (I know this will cut out a running engine so presumably it prevents it starting?)
Check Starter solenoid (not sure if this would put triangle on)
Check fuses with multimeter.
Bike is on optimate now so check if triangle goes out when charged.

Any other suggestions on what to do next or theories on problem VERY welcome.

Thanks all.

Kevin

Thanks Ruck.
Thought of the tip over sensor and that is one of the things I've been trying to find details on. I believe it is not just a switch but has some form of resistance value in there rather than just being a case of open or short.
But logic would dictate that if the tip over sensor prevents the fuel pump and injectors from working, that would not neccessarily prevent the starter motor from turning when the start button is pressed. Not just a problem with poor starting, it's not even turning over.
Battery was disconnected and re-connected to re-set the system while I was waiting for the rescue van. No difference.
How do I check the key switch? I guess you mean the ignition switch. Seems to be a sealed item with no obvious sign of a way in. I can only check at the connector and see if the correct connections are made tin accordance with the wiring diagram. When I can find it. Operation seems normal for all other functions of the ignition switch.