Hi all, Pulled my 76a out of the garage, had the battery on trickle charger all winter. Will not start. Get a healthy 13.8V + from the multimeter. Checked all the fuses all ok,its dead, totally dead. No lights on dash or anything. Tried a new batt just incase it dropped under load but nope. Anybody got a suggestion where I might start fault finding? Any common issues to look out for? Need to get out on my bike man

Wiring around the head stock area seems to be quite common with these.
Check earth leads aswell.