2010 Yamaha Cygnus vacuum and fuel line routing

Question edited for clarity.
Question moved from Yamaha Cars to correct category.

Enter the diagnostic mode

https://www.motorcycle-manual.com/yamaha-fault-codes/

https://www.google.com/search?q=2010+yamaha+cygnus+engine+light+flashing

..

The other line goes to the fuel gauge overflow right next to the petcock vacuum line on the tank. Big nipple on petcock goes to fuel line leading between carb 2 and 3. Small nipple on petcock goes to the brass nipple on the front of carb number 2. The other hose hooks up to the nipple coming from the fuel sending unit and routes down below the battery and ends. It's there in case the fuel sending unit leaks the hose will route the gasoline away from a hot engine instead of pouring out right on top of it. The nipple to the fuel sending unit should be positioned pointing directly at the petcock on the bottom of the tank. In case you don't know what I mean by sending unit it's the big round circle on the left side of the bottom of the tank with 2 wires coming from it.

The '82 1/4" fuel line goes from the petcock to the carb....(install an in-line fuel filter between them)...with a vacuum line going from the petcock to the vacuum off take, located on the front carb rubber manifold, (the smaller of the two brass tubes!!).
You should also go to www.ridersofvision.net A web site for Yamaha Vision owners...

Tiger.