WTF!? Electrical issues

[Feasty]

Okay so I'm not expecting someone to be able to identify the fault but just had a bizzare thing happen.

To start with - from time to time my bike doesn't start, get the ignition light on and press the start button nothing happens, if I hold the button in or try again it then starts. Otherwise it starts without fail. I've been putting this down to the battery needing a top up charge but haven't quite got round to it yet!

Went to go out from work at 12 today, got to the bike and it did the usual, ignition light comes on but the bike won't start. I try again and again, turn the cut out switch off and making sure it's on okay try again - still nothing. So I think the battery is buggered. I go back into work to find a mate to give me a jump start but he's not around, so I go back to the bike to get my bag and give up thinking I'll try again later.
Then I decide to give it one last try, still same as before nothing. I the turn the lights on to see how bright they are, they look fine so I try to start the bike again... and it starts instantly, with the lights on! So I turn the lights off, switch the engine off and try starting it again. It start again instantly and for the next 3 times I do that it starts. I'm frazzled!?

I can only think the battery has decided to go loopy or it's time to start checking all the electrical connections and making sure they're good...
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Previous: Aprilia Habana Retro 50cc (beauty), Yamaha SR125 (fell apart), Honda XR125 (nippy little commuter), Honda SLR650 (Geewhizz), Yamaha Diversion 900S (Smoooooth) written off courtesy of a stupid escaped horse.
(7 year gap), BMW F650 (Relaxing ride). Aprilia Caponord ETV1000 (Big and bold). Yamaha FZS600 (got me in trouble too quick!).
Current: Yamaha TDM 900 (Comfy, light but big, power when needed).

[Finglonga]

Is there a click when you try to start the bike from Starter solenoid? Or a dirty contact on the starter switch maybe?

The battery should be ok as it is charged every time you ride the bike.
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Andy Sez....
F.Y.Y.F.F.

[Feasty]

[stinkwheel]

Could be a poor earth connection for the ignition switch, or a sticky relay.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[the grim reaper]

[Phoenix]

It's a poor connection or one of the starter wires is earthing which is why the lights dim, check the wiring to and from the starter switch and ignition and down to the starter relay, the battery sounds fine.