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I am interested in installing a larger gas tank in order to be able to bypass the lovely metropolis of Baker, CA (home of the highest gas prices in Christendom.) If anybody here has any info on this, I'd appreciate knowing about it. Thanks.
 

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I have been thinking about getting a fuel cell that I can attach to the back of my bike.
This place has a 4 gallon fuel cell that measures about 9" x 9" around the sides and about 16" tall.
http://www.rjsracing.com/fuelcells.html
I have seen prices less than $100, not including any parts necessary to run a fuel line from the tank to your petcock.

This place has a whole bunch of smaller fuel cells, but most are between $100 - $150
http://www.rciracing.com/

I found this place too that has a variety of tanks for around $100.
http://www.jazproducts.com/index2.htm

Granted these aren't as elegant as getting a bigger tank, but there are a lot of tank size options and you can always remove it from you bike if you don't need it at the time.
 

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Search Goddess
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We've been looking at the auxilary furl tanks also. Problem is.. where or how to tie it into the tank so we can just flip a switch to refill. Otherwise it is just a gas can, right?
I have an advantage since I have the sidecar so carrying one won't be a problem, would just like to refuel on the go *S*
 

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I also was wandering the same thing. I am hoping that a tank from a different bike would fit. Check with a motorcycle salvage yard to see if the would have a list of tanks from other bikes that would fit. Just a thought keep us informed.
 

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Search Goddess
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One thing I should add on this.. We are also installing an 800 tank on a VN750 project bikke we are working on. The 800 is a 4 gallon tank so we gain a little bit more. It does mean doing some other changes to the bike though. The instruments will be removed from the handle bars and the instrument cluster for the 800 tank used.
Believe it or not some Harley split tanks could also be adapted to the VN750.
Key things you have to consider are
1. Fuel feed
2. How close a fit are the brackets and how does it sit over the frame.

Going too big could off set the lines of the bike and leave you straddling the tank with bowed legs just to get to the shifter and brake. Going too high could affect handlebar clearance in some tight turns (Don't want those little dings when you crank the bars to back into a space now do you!)

As with any modifications to basic equipment for our bikes, don't think about what will fit, Think instead about how you can make something fit. That opens up a much wider spectrum to choose from then!
 

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From the little research I have done, if the aux tank is at or above the same level as your main gas tank, like the luggage rack, you can let gravity do the work. If you want to have the aux tank in your hack, you would need to get a fuel pump.

You can tie into your existing system. I was thinking about simply removing the reserve hose and replacing it with the aux tank hose. Or adding an extra switch for the reserve line so you could still use the reserve. You can even get fuel level sensors for the AUX tanks.

One site I was looking at had instructions on adding a extra fuel connector by drilling out a hole in your original tank. Using that to connect aux tank. I was leery about it, when the instructions talk about using "a small childs or womans hand" to reach into the tank. Didn't sound good. I am reluctant to do anything to my bike that isn't reversible.
 

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Discussion Starter #7
What I have been doing so far is to carry a couple of liters of extra gas in the saddlebags using backpacking (white gas) fuel containers. This has worked, but what I'm thinking about is maybe even a custom tank or something larger adapted to fit the 750. Just wanted to know if anybody had any "specific" models of tanks that could be easily (more or less) adapted.
 
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Dianna said:
We've been looking at the auxilary furl tanks also. Problem is.. where or how to tie it into the tank so we can just flip a switch to refill. Otherwise it is just a gas can, right?
I have an advantage since I have the sidecar so carrying one won't be a problem, would just like to refuel on the go *S*
What changes did you have to make to the Vulcan 800 tank or 750 mounts for the VN800 tank to mount securely?
 

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Having looked at all of those, a concern arises about the safety of the cells during an accident or some such.

The reason for the concern is that we are talking about putting a tank outside the protection of the main frame of the bike.

Granted, I've only started the research, but a concern I have is my being a newbie, laying down the bike and getting myself a nice healthy fuel leak.

An additional concern is what our friend at the DMV and or various l.e. agencies would have to say to something like that.
 

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in essence all tanks are outside the frame, so they are all rolling bombs. just a note, some of the auxillary tanks are race car quality in material and structure. i would bet they are safer than stock tanks. something to think about. remember you get want you pay for.

ride safe, john
 

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and the Adventure Cycle
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In another group I belong to, a guy added an aux. fuel tank to his pickup truck.
I'm not sure what state he was from, but his DMV laws stated you couldn't have an aux tank which the engine would run off of. It could only be used to refill the main tank.

Just something to be sure and check out before hand.
 

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free wheel-e said:
in essence all tanks are outside the frame, so they are all rolling bombs. just a note, some of the auxillary tanks are race car quality in material and structure. i would bet they are safer than stock tanks. something to think about. remember you get want you pay for.

ride safe, john
Fair points about the tanks and the quality of the after-market ones. One would assume that in order to get DOT approval, some crash testing and basic safety of the fuel tanks and other components had to be done by the manufactuer - courtesy of the Yugo if anything else.

My chief concern is the legality of having a second fuel tank which feeds directly into the engine - I've heard enough anecdotal evidence about CHP loving to harass motorcycle riders for everything as is.
 

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IASKRU12 said:
From the little research I have done, if the aux tank is at or above the same level as your main gas tank, like the luggage rack, you can let gravity do the work. If you want to have the aux tank in your hack, you would need to get a fuel pump.
The gravity feed model is in use in the Cessna aircaft - should work just as well on our machines, too. Typically, you have an elevation change of about 3.5 feet in a Cessna, but that should not matter. A different challenge are the forces imposed by acceleration and other maneuvers during riding.
 
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