It's not usually the switch that's the problem. There's a small relay, yellow if I remember, behind the upper fairing on the left, that plays up. You can open it up and clean it, but usually replacement is best.
Mood: Abbia Divertimento---o0o---Cassaforte Di Soggiomo
God ??
Rockhopper The DEVIL invented cars - GOD invented Ducati's - that's why us folk are saintly and them 4wheelers are scumbags intent only on our destruction!
By the way I've used mainbeam on my ST4s and I'd have been better off bluetacking a couple of candles up front!!