My dealer diagnosed the tilt-lock issue to be the tilt-lock pressure sensor, part number 640295. They replaced the hydraulic fluid in the system but didn't have the part in stock.
Trouble is that the dealer (Eurosports in Coopersburg, PA) is a 3 hour round trip for me, so I thought I could replace the part myself.
Is it just a matter of unscrewing the part and screwing in a new one? Will I have to re-flush the hydraulic fluid? Reset something on the ECU to make it all work?
I hear that this is a very common problem, but I've never seen any thread about the steps to replace the sensor.
Piaggio Pressure Sensor (640295)