Found this solenoid (surprise) tucked away while removing the plastics to install my spal fans, one end of the hose capped and still pugged into the elect connector. I'm thinking the other hose tied into the component just in front of my dash cluster. Is this part of the flapper mod? Do I need to reconnect? Bike runs fine. I just picked this bike up about a month ago, it's an SP-2 with a PC-5.