[maviczap]

Check the ignition connector under the tank & the big yellow connector if your bike has a fairing. These can get furred up, and need a clean

Check the Reg/Rect fault finding thing in Geodude's signature

Check your battery connectors.

Mine lives on the Optimate when not in use, after I replaced a battery after less than a year.

Could be a duff cell on the battery, you'll still get 12v off it, but not enough to turn it over. Sv needs a battery in tip top condition