[SV650rules]

One hose comes from direction of fuel tank on LH side of bike ( but cannot see any connection either side of filler cap boss ) and the other one goes down to the RH side of bike down towards rear brake reservoir, but cannot see end of pipe ( my bike ii on ABBA stand ATM with RH side of bike close to garage wall so cannot get round to see properly ). It will be off the ABBA stand this week, already replaced battery and blown the tyres up - they had only lost a few PSI...


Apparently there are two kinds of EVAP systems, passive and dynamic. There are purge valves and all sorts of ****e on dynamic systems to allow fuel vapour from tank into inlet manifold etc, probably fitted to high end bikes like Ducati and BMW.. The Suzuki one looks like a simple passive system where it allows fuel vapour from tank to pass through carbon granules before being vented to atmosphere, and can allow air in and out of tank to make sure tank does not over-pressure or develop a vacuum inside. With either sort of EVAP system the fuel tank gets a sealed cap, plenty of advice on USA bike forums to remove / plug up EVAP but then you need to buy and fit a vented fuel tank cap, USA riders have had this crap on their bikes for a long time now, we are only just getting it.