Fuel Pump/Filter Asembly Question

Post by **Boxer** » Sun Apr 16, 2006 3:15 pm

Can someone tell me what the two little hoses go to that run up into the tank from the fuel pump assembly...The ones you have to disconnect to replace the O-ring?

Airman · Post by **Airman** » Sun Apr 16, 2006 3:42 pm

You mean the lines on the right side under the tank ? I think they're the fuel vent lines. In and out. Don't mix them up. I think you'll have problems if you get them backwards.

Post by **Boxer** » Sun Apr 16, 2006 4:12 pm

NEIN, meiner Herr!
I mean the two little hoses attached to the fuel pump assembly inside the tank. You have to disconnect them to replace the rubber o-ring under the fuel pump assembly when replacing the fuel filter.

Post by **machew01** » Sun Apr 16, 2006 4:22 pm

Phil, When do you have time to actually ride that bike?

mac

Post by **Boxer** » Sun Apr 16, 2006 5:11 pm

I rode it week before last, all over west Texas. This past week has been a week of working on everything just about. I'm almost done. Got the fuel filter changed out today and finished up tidying all the wires up from the light project. Tomorrow after work I'll check the valve adjustments and put in the new plugs. Then Tuesday afternoon it's ride-around-to get-her-hot time so I can change out the oil and filter and the final drive fluid...and a TB synch.

Wednesday, I'll give her a bath and spiff her up a little for the weekend.

Alt · Post by **Alt** » Mon Apr 17, 2006 2:26 pm

Regarding the vent hoses that run out the side of the tank and down the bike. I have heard people say on this site "don't mix them up." Why not, if you follow them they both vent out the bottom of the bike.

Alt

Post by **CycleRob** » Mon Apr 17, 2006 11:12 pm

One hose comes from the filler cap area water drain hole that you see in the 9 O'Clock position when the filler cap is open. The other slightly larger one goes to the white plastic roll-over valve that shuts off the vent line to the charcoal canister center port IF the biketips over, preventing liquid fuel from entering the canister, OR other similar high fuel level conditions like overfilling the fueltank or the bikes leaning position tips the high fuel level so it submerges the "vapor only" vent opening.
Here's what I'm talking about:
http://r1150r.smugmug.com/photos/12189875-O.jpg

If your hoses both vent to the street drain, your canister hoses are mixed up at the plastic male connectors.