Oh bollox !! That was a waste of 1.5 hours :
Removed screen and lower dash covers. Traced the wires from switch. Removed various cable ties and opened the plastic wrap to get to connector.
Removed original and inserted the replacement switch's connector to test it before installation. Spend 5 mins double checking things as the ignition was not working. Make an educated guess that it's due to the lug pin being an earth and then prove this off by using a small piece of wire. Replacement switch operates fine.
Loosen the throttle cable adjuster as much as possible and then open up the existing switch. Spend 15 mins trying to see if I can steal enough slack to disconnect them. I can't. :cry: Put everything back the way it was (note - it's easier to remove the brake switch and put the cables on than try and do them in place.)
On my bike I'd need to lift the tank and air filter housing to get to the other end of the throttle cables and I don't have pipe clamps.
If you're planning on doing this then it's probably worth checking what slack you can get on the the throttle before doing anything else.
As mentioned above it's certainly a plug and play solution. On the Fi switches (i.e. without a light selector switch), the plug connector simply has a short loop to send the light's feed back out so that they're always on.
So I either buy pipe clamps (probably worth it so I can do more on the bike e.g. filter change etc) or I get the time delay relay which would be straight forward.
The former's probably the better option but I'll also need to take a brave pill to remove the tank the first time.