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Buell Forum » 1125R Superbike Board » Archive through September 16, 2011 » Fuel Tank Ventilation reroute. Opinions? « Previous Next »

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Krash01
Posted on Monday, September 05, 2011 - 04:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I recently removed the rear footpegs, from my 2009 1125 CR. After doing so, I had to find a way to reroute the fuel tank ventilation hose that drips gas onto my garage floor. I settled on a novel solution, but I would like some opinions to make sure I haven't created a fire hazard.

1) Fuel hose was rerouted under the seat to the right side of the underseat compartment.

2) I took an empty pill bottle (the kind you get with prescription medication that has a child safe cap) and drilled a hole in it just large enough to fit the ventilation hose. I also drilled 5 smaller "vent" holes, in the cap.

3) I inserted the hose into the cap to a depth of half the bottle. I then filled the bottle with kitty litter, and sealed the bottle.

4) Bottle was then zip tied, in an upright position, to the frame on the right side of the underseat compartment.

I took the Buell, for a ride, to get the engine nice and hot. When I returned home, I put it in the garage, and closed the door. I checked the garage a little while later, and the overwhelming odor of gas fumes, that usually accompanies the aftermath, of a hot ride, and a closed garage, was not present.

So, did I do good? Have I created a potential fire hazard by having gas fumes trapped under the seat?

Opinions?
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Geforce
Posted on Monday, September 05, 2011 - 04:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When I removed my passenger foot pegs I just removed the entire section. I went to the local auto parts store, bought 6 feet of new fuel line (extra will be used for other stuff in the shop) and attached one end to the connector, ran the line down the brake side of the bike and added it to the other drip lines. I cut the hose a little long so if I get any drippies they will miss the exhaust and land on the ground. I used black zip ties to secure the connections and tied all those lines together nice and snug also.

This was very easy for me, and I've had no issues with it for over a year. The 08 1125rs came this way to begin with. I thought about some crazy contraptions but I like to keep things simple. Good luck!
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Jules
Posted on Monday, September 05, 2011 - 06:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Because the vent hose is there to allow expansion of the gas when it heats AND to allow the tank to suck air in to replace the gas as it's burnt I'd suggest that the hose needs to be able to breath in both directions.

Drilling the extra vent holes in the pill bottle lid is a good start but my concern is that when the hose is sucking it might drag some of the kitty litter back into the hose.

It's unlikely that it will travel all the way up the hose but it might well block the hose itself and you'd lose your tank ventilation altogether.

A gauze over the top of the kitty litter would help..

Just my opinion of course..
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Stirz007
Posted on Tuesday, September 06, 2011 - 12:55 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

For my race set-up, I got rid of the passenger pegs and mounts. I routed the hose almost straight down from the front connection (between motor and frame) and basically followed the coolant puke tube to its outlet. JDugger uses a catch can (posted elsewhere). Be careful not to get too close to the header if you go with my option (I did, and had a rather spectacular incident when I melted it closed) -
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Sportster_mann
Posted on Tuesday, September 06, 2011 - 05:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I hope that the pill bottle is made of glass, and not plastic !

As Jules said, if it was me I would put some sort of gauze or mesh over the end of the hose to make sure it cannot suck anything back up into the hose.

(Message edited by sportster_mann on September 06, 2011)
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Mountainstorm
Posted on Tuesday, September 06, 2011 - 07:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I bought some line and routed it down the left and tucked it between the rear brake line and swingarm under the bike out of sight. It's out of the way and when it drips it misses the Barker. Maybe if I garaged the bike the gas smell would be a problem. I've gotten used to the idea that this bike likes to mark its spot : D
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