Hello, I changed the battery a few days ago on my Nexus 500 i.e. 2004 with a disposable spear. The first times it ran quite normal and now it doesn’t start any more. The starter spins and the fuel pump runs too. Only the ignition spark does not get it. I checked all fuses and they are ok. Have seen in the net that probably there have been problems with the Piaggio/gilera. Is there a possibility to deactivate the immobilizer? Or is there ever a and this problem is known and it lies somewhere completely different? Thank you for your help!