I re-fitted the battery to my Sixty5 today after giving it a good charge (it hadn't been ridden for a few months, during which time the battery had been indoors and periodically trickle-charged). Now when I switch the lights on, the ammeter flicks instantly to total discharge with no lights working (sidelights, tail light or headlights) as if there is a dead short. Yet the indicators are bright and flashing normally and the brake light works, and there is current getting to the horn, although its sound is very muted (it might just need adjusting). This is when the engine is not running (I am aware that the headlight only works properly when the engine is running, but the side lights and tail light should come on). The ignition circuit is working normally and the engine starts ok, and the ammeter is showing a charge when the engine is running with lights switched off. (I didn’t try switching the lights on when the engine is running). I cannot try the electric start, as I converted it to kickstart-only three years ago. Does anyone with knowledge of such matters, have an idea where I should start looking? Thanks!