Aux fuel cell plumbing info please. - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 43 Old 10-14-2017, 01:57 PM Thread Starter
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Aux fuel cell plumbing info please.

I am currently running fuel cells on my other bikes to extend their range. Stop when you want to, not when you have to.

I am looking at setting up my '07 Vee for my 1st rally. Mostly interested in how others plumbed the aux tank into the stock fuel system/existing tank.

Any pics of modified stock tanks would be appreciated also. For that matter, any pics at all of your systems would be appreciated.

Any cautions of note I should be aware on the Vee?

I think I am aware of most cautions when it comes to running gravity and pressurized systems. Plumbing the Harley was easy, the Valk only a little harder.

TIA

Jim
SoUtah.

Ride Safe!

Thanks,

Jim

'07 Vee
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post #2 of 43 Old 10-14-2017, 02:45 PM
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The ones I've seen use a gravity feed from an auxiliary tank to the main tank. The hose fitting to the main tank is placed in the fuel pump base plate.
marco-polo and Old Time Rider like this.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

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post #3 of 43 Old 10-14-2017, 06:14 PM
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I have to stop to pee before the fuel runs out, so it is still "have to".
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post #4 of 43 Old 10-14-2017, 11:01 PM
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Quote:
Originally Posted by spike55_bmw View Post
I have to stop to pee before the fuel runs out, so it is still "have to".
We can have a pee pretty much anywhere (hmmm) but fuel not so much But I do agree...

On aux fuel - I have a red plastic jerry that bolts on under/behind the left pannier. If I ever need it, I will just pour this into my tank. Really I expect it to be used by riding companions before myself.

I would imagine you need fuel pumps and whatnot - does it get complicated, generically?
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post #5 of 43 Old 10-15-2017, 02:00 PM Thread Starter
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I use gravity feed on the Valk and Road King. No pumps and the tank runs as a parallel fuel supply or I run off the aux till empty on the Valk and then switch to the main. Not an option on the FI RK. Will be the same with the Vee.

I carry 2 each 1 liter MSR fuel bottles in each of the tractor manual cases: Manual Canister, Tool Tube, Document Holder, Manual Tube

I have never used them, as I am pretty paranoid about running out of fuel. I have used one to help another motorcyclist out.

I need to push my range comfort out to about 350-400 miles. I don't think there is enough space to modify the stock tank for that range. I have purchased a used tank for the mods and will go from there.

Any additional info/photos are still welcome.

Thanks all.

Ride Safe!

Thanks,

Jim

'07 Vee
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post #6 of 43 Old 10-15-2017, 04:01 PM
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I'd be interested in your progress if you'd be willing to update us as you go?

Good luck!
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post #7 of 43 Old 10-15-2017, 04:46 PM
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Some guys have added a section to the top of the gas tank. I've thought about adding to the front lobes of the tank. The change wouldn't show and would leave the top of the tank stock for the tank bag. Looks like there is room inside the fairing. 2004 Wee.
I just haven't gotten around to more than thinking about it.
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post #8 of 43 Old 10-19-2017, 05:39 AM
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Seems like

Seems like you could modify a gas cap to allow pumping in fuel, assuming you don't want to make permanent changes to your tank and have a fuel bung welded on. Not sure where you'd put a tank high enough to gravity feed, but there are small 12 volt fuel pumps that would safely transfer the fuel. Kind of a question of how safe you want to be as to plumbing. Could use simple rubber fuel hose or hose with stainless mesh around it for a bit better protection. Hopefully your aux tank is metal of some sort. My main concern would be having some sort of 'breakaway' fuel connections that seal when they separate. In the event of a crash, and the aux fuel tank coming adrift, be nice if it wasn't splashing fuel everywhere.

In theory, could seal the main fuel cap, and vent it through the aux tank. So it'd pull fuel from the aux tank to the main tank automatically as it was used. But any slight air leak would interfere with proper operation.

I shudder when I see bikers with plastic cans bungeed to their seats or racks. In the event of a collision with a cager, I could see gas all over the place, not good.
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post #9 of 43 Old 10-19-2017, 07:07 AM
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Quote:
Originally Posted by notacop View Post
Some guys have added a section to the top of the gas tank. I've thought about adding to the front lobes of the tank. The change wouldn't show and would leave the top of the tank stock for the tank bag. Looks like there is room inside the fairing. 2004 Wee.
I just haven't gotten around to more than thinking about it.
these are my thoughts as well, not to leave room for a tang bag though, don't like em, for the same reason I wouldn't want a bubble on top of my tank

I have gotten a little further in the quest than you, only cause I had a ladder fall on my Vee 2 days after I brought it home from the dealer, so, I have a damaged spare tank as a starting point

I have considered even more, taking the faring sides off and expanding the lobes outward as well.

I'd like to have a minimum 8.5 gal capacity, that would get me a reliable 300 mile range, but ideally, IBA max 11.5 gal

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post #10 of 43 Old 10-19-2017, 10:22 AM
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i guess the Vee is a bit more thirsty than the Wee. The older 5.8 gallon tank can theoretically tank me 300 miles at the 53.4 mpg I'm currently getting.
Getting a half gallon more on the lobes would be nice. I wonder though about how it would fit in the side panels.
Imagining a quart added to present shape. And making it able to completely fill the added volume. There may be obstacles to surmount.
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