Birdy, I've got a YS110 plumbed up with only the fuel line and the pressure line. I tee'd into both and ran the lines down and out the bottom of the cowl. I fastened them with velcro so they don't hang out but are accessible when I fuel. I pull one dot to vent then pull the other to fuel up. I've decided to clamp the fuel entrance to the motor before I fuel because some of the pump pressure is forcing fuel into the engine and overflowing from the carb. Makes a mess I'd rather not have. Don't forget to vent after flying or the same thing can happen. You can barely see the lines in this pic. I'd take another but it's in the Jeep and to nasty outside to go get it.