F800GS Touratech 20lt fueltank - Who's got one???

Discussion in 'Parallel Universe' started by Wildman, Jan 30, 2009.

  1. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    Oh, right. Will do. Though for a minute you said "poorcity". I'll let you know on that too. :D
  2. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    I had a thought that making sure the vent hoses go above the level of the TT tank before going to the canister might work? Is there a downside to having gas in the vent line from the main tank for long periods of time? Of course I'd have to get a bunch more vent hose... :dunno
  3. gr8ridn

    gr8ridn Been here awhile

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    I don't have the tank yet, but I have to believe the design would take the venting above the fuel level like the main tank so fuel is not introduced into the vent line. The check valve I read about might have some function here. Sorry I can't be more specific, too early to know. A call to Touratech might answer your question. Every time I have called I have been given no BS answers.

    As for the porosity, this is a Polyamide (PA6) rotation molding material that is rated to seal a number of chemicals including gasoline. The manufacturer, Elkamat, is the supplier of fuel tanks for a number of vehicle manufacturers including Porsche, BMW, KTM, and Yamaha. These manufacturers must ensure their tanks meet EPA regulations concerning vapor containment. They make fuel tanks for production runs as well as speciality runs. They have supplied Paris Dakar teams from KTM and BMW. I think the tanks will be solid and non-porous. On their website they note Touratech as one of their customers. This is a very different material than used for the under seat tank of the F800GS. It a material also used for high strength car bumper structures.
  4. PackMule

    PackMule love what you do Super Moderator

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    Thanks, gr8. :thumb
  5. SgtDuster

    SgtDuster Long timer

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    I really think he was talking about the rhino stuff porosity...not the tank itself.
  6. gr8ridn

    gr8ridn Been here awhile

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    Well, that Rhino Liner is pretty tough too. It's been on my 97 pickup since new and has resisted every scuff, spilled fuel, and other chemicals. If you like the appearance I don't think there are many finishes tougher.:huh
  7. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    I actually used LineX.

    LineX vs. Rhino
  8. gr8ridn

    gr8ridn Been here awhile

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    Cool, is the kit meeting your expectations so far?

    Anything further on the whistling noise?
  9. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    I taped up the gaps between the tank and radiator and taped the turn signal mounts (which are actually quite whistle-shaped) and stuffed the ends of the crossbar mount (lower front), but the whistle persists. Looks like I'm gonna have to take the tank off and see what else looks whistley.
  10. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    OK, taped up some of the other bits and stuffed rags into gaps around the beak. Geared up and took off down the street. No whistle! :thumb Stop and remove a bit of tape. Still gone. Repeat. Still gone. Remove a rag. Still gone. Remove another, it's back! Stuff back in just on one side of the gap, still whistling. Other side. Still whistling! :bluduh Hmmm... OK, back on both sides. No whistle. Hmmmmmm......Aha! The middle! Rag stuffed in just the middle and....no fucking whistle!!! :wings



    Right behind the beak under the lights is a hollow structural member with the open bit facing forward. Rag's still in there. I'll need to find a more elegant and washable solution.

    Or not. :D
  11. gr8ridn

    gr8ridn Been here awhile

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    Thanks Duck,

    I will take a look at mine and figure out what you are talking about. It must be a part changed by the tank kit. Thanks.
  12. GrommettAZ

    GrommettAZ Adventurer

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    I love TT stuff, but I got a look at an 800 with the big tank on it and I thought it looked like SHIT! Big, awkward, and well...pretty ugly. The guy said he also needed to do a stiffer fork kit because the weight balance was off when it was full...sounds like a downward spiral of cash flow. Personally I thought the small tank was an issue, but then I realized that I am more than ready to get off and stretch my legs long before I am out of gas. I'll spend my money on a new Ohlins or something else....just my two cents.
  13. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    Thanks. You're absolutely right. In fact, I now have a 350+ mile bike, but still have a 150-mile ass. I guess I'll just have to take my rest stops somewhere-fucking-else than a gas station. :D I suppose I'll also have fewer fuel planning issues (appx. 50% fewer), so there's that too. :thumb As for ugly? I'm now in a situation where my bike makes me look pretty, as opposed to the other way around. :raabia

    Where you at in AZ? Wanna touch my bedliner? $5 :deal



    :lol3



    P.S. If I had a problem with stupidly spending money I would have bought a BMW because......
  14. gr8ridn

    gr8ridn Been here awhile

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    Appearance is subjective and if you are riding a GS no one really cares about looks. Lets face it, a larger tank really isn't going to bother most owners going for the larger tank so that argument is rather small. The functional aspect of extended range and freedom from having to plan gas stops in remote areas is an arguable enhancement of the bike. It really depends how the bike is used and where it is ridden. It only has to please the owner. Kind of like going up to a proud owner saying you really dislike the colors of his bike, petty.

    No need for longer range, fine.

    Add extra gas cans, fine. That is a valid cost effective solution for added range.

    Add a larger tank, an expensive but built in solution with superior range to any other solution I have seen. As for the weight, we are talking about 32 pounds of additional fuel that is burned off as you go. The weight of the tank and related hardware isn't much different from the parts removed as part of the conversion. The weight of the fuel is carried low and centralized, better than most carry on fuel containers. I also enjoy breaks, but there are better places than every 180 miles at a gas station. Riding through Labrador or up to Inuvik will be much better if you can do most of it without worrying about buying poor quality fuel you are usually forced to deal with when in remote long stretches. Besides, two of my best riding buddies ride GSA's, so I am sure they approve. Any way that is my story and I'm sticking to it:evil

    All that counts is the owner is pleased with the results.

    BTW I ordered my TT tank today. I am also overdue to upgrade the suspension so the appropriate springs for my weight and this kit are ordered. I'm looking forward to this project.:clap :clap :clap
  15. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    OK, so I guess I'll need new front springs too. :D Thanks for the vote of confidence, I actually like the new bulbous look. :lol3
  16. guzzimike

    guzzimike Long timer

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    What rate springs do you think you'll need Bill?
  17. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    Bigguns? :dunno

    Dunno really, haven't gotten that far yet. At 6.25 pounds per gallon plus say 10 pounds for the tank, that makes an extra 40-ish pounds. Given that I'm also short for my weight, I would need, um, lessee......carry the two.....

    Uh, what rates you got? :ear
  18. guzzimike

    guzzimike Long timer

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    I would of thought TT would have some info on the subject.
    I think the Bitubo springs are .62 vv originals at 40something.
    Not that that is much help.
    This tank is two grand in Oz. So I guess I don't have to think about it a lot.
  19. Bill the Duck

    Bill the Duck Unwitting Accomplice

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    Here's the whistle fix. :D

    [​IMG]

    Can't really see it but I think it's a stock part, made of that black plastic crap.

    [​IMG]

    Still haven't decided on a permanent solution...
  20. gr8ridn

    gr8ridn Been here awhile

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    Interesting, I can't see where the tank would affect this area. The whistle and big tank may be unrelated. Appreciate the photo, I was thinking another location was described.