Gs 700 e Gas tank plumbing

[wilson08]

I'm sure this has already been killed with posts, but I'm gonna try anyway.

I have an 85 700 e. I have the tank off now. I have 4 line nipples on the tank.

1. Fuel line to carbs (Petcock)
2. Vaccum line to carbs (Petcock)
3. The sending unit on the right.
4. very front of tank in the U bend for the frame.

Ok. I have questions on 3 and 4. Which one goes down to the ground for an overlow. and what does the other one do?

Thanks in advance.

[Griffin]

The one coming from the fuel level sensor is there in case the gasket leaks. That way fuel will go down through the line to the ground and not drip onto your hot engine (very bad).

The one coming from the front is a vent for breaking vacuum to allow your petcock to work and also serves as a channel to direct fuel back behind the engine if (when) you tip the bike over.

So...to answer your question, both lines get routed back behind the airbox and down to near the ground.

[Nessism]

The sending unit line goes to the ground - the metal cover over the sending is a funnel that catches any gas that leaks past the seal. Not positive but I think the front line is a vent - does your bike, or did your bike, have a charcoal canister?

[wilson08]

Nope no canister. I think they both go to the ground. I just wanted to make sure before I filled it and poored fuel all over the ground.