looking through some old posts it seems theres two things to try. the first is switch cleaner on the kill switch, the second is possibly removing the old datatool. I like having it on the bike because I have to park it up in Bristol, which is renowned for thieveing bike scrotes, but I could always double up on the locks or even take a chain in with me. I took the datatool off my old zzr1100, and its an easy enough job (and kinda satisfying) to cut out the datatool wires and re solder and heat shrink the originals back together and repair the loom