I’m contemplating removing the EVAP system from my Multistrada 1260 Enduro. To my mind it’s one of those things that’s a great idea when everything is new, but as the components age they just become a time bomb for a failure of a simple unnecessary item that could leave you stranded. It would also clear a space for a nice big horn on the bike. I understand that the purge valve opens and diverts fuel vapour into the inlet tracts where it’s burnt in normal combustion, The parts diagram for my bike shows two breathers from the cap, only one of which goes through the EVAP system. I’m assuming that with the Purge Valve closed the first breather Hose acts like they have for 100yrs or so allowing the tank to breathe. With the engine running and the Purge Valve open, the vacuum in the inlet tract drags the vapour through the Charcoal Canister and into the engine. I understand what to do to remove it: Remove the canister and valve. Find the best/convenient place or method to plug the inlet tract ports by plugging hoses or the ports themselves which will depend on access. Turn the second tank breather into a normal one by joining hoses 20 and 13. That leaves dealing with the valve signal. There is a delete kit available for very little money which says it fits the bike: https://www.ukracesupport.com/products/ducati-evap-canister-removal-kit But having a load of Superseal connectors around me I could make my own. Does anyone know if I’d need to add a resistor to simulate the valve? Or is it just a loop of wire?
Interesting... In the photo it looks like there's a straight section in that loop, so most likely a resistor. I'd measure the resistance of the valve coil and use a resistor, so there's a matching current being drawn from the ECU when the (now phantom) valve is turned on.
