So, I made one up at the w/e.
Required:- A fuseholder, a switch a 4 way flasher unit (often marked 4 x 21w + 5), two diodes of 50 volt 4amp minimum (I used 50v 6a ones as that was all Maplins had).
Before starting this work, disconnect the battery!
I 'tapped into' a permanent live feed from the loom under the instrument console and wired in the fuseholder to it.
Then took a feed from there to a small toggle switch with waterproof boot and fitted that also onto the instrument console. From there I followed the circuit seen below using soldered joints to the diodes and heatshrink tubing to keep it neat.
Reconnected the battery and VOILA! A set of working hazard flashers.
Those of you with led lights might have a problem that will require resistors to cure but I don't know for sure as I have the std set-up.
Didn't take long really and I had a few of the parts like wiring, crimps etc so costs was about 7 pounds all up I think.
Nice to pull over while waiting for other riders to catch up/check the MK1 SITNAV (Sit and Navigate by map) etc and feel a bit safer.
The flasher unit fitted neatly into the support frame under the console with a single cable tie holding it securely in place
I have made it so it can all be removed very easily for use on a different bike or when the bike is sold without major rip-outs required.
No responsibility can be taken by myself or this forum for damage incurred if you undertake these alterations and they are carried out at entirely your own risk.
LSM
