I havent spried the contacts yet!With hazard(Warning) llight i meen bouth turner lights flash at the same!
I had this problem with another bike recently (not a Guzzi). One pair of turn lights was wired the wrong way. Check all the lights are earthed the same way. Don't rely on the colour of the wires to be correct. I found the factory had wired one pair of the turn lights differently to the other pair!!!!!