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.
I ended up buying the ukracesupport connector. So as of today all this unnessessary stuff has been banished and left a good sized hole for a better horn.
@Keith_P Had a quick look This is a better image of the ukracesupport EVAP Eliminator: It does appear to be an old style Through Hole type Resistor connecting the two pins and covered in heatshrink. It looks like a Resistor to me not anything else. But the resistance value is wildly different to that of the valve, so I'm assuming the ECU just needs to 'see' something. Unless the resistance of the valve goes up significantly when powered up, which could be possible. Resistance of the valve - 16Ω Resistance of the component in the adaptor - 9.85KΩ
No, just the outer and inner covers on my Enduro, I don't know about other varients. The biggest pain was removing the canister plastic bracket, as the Allen head screws are on the inside. Including removing the Touratech crashbars fitted to my bike it took me about 1.5hrs, which included searching my stash of useful bits to find a hose connector to extend the breather and a suitable plug for the hose that went to the valve. If you want to plug the inlet tract stubs individually it would take longer to get to them.
