ADV tank installation on F650GS / F800GS for extended range

Discussion in 'Parallel Universe' started by GB, Mar 2, 2012.

  1. Against the Wind

    Against the Wind I'm older now but still runnin'

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    If you ride the F658gs at a steady 55 mph in 6th gear you will see 65 mpg.
    #61
  2. bobobob

    bobobob IN HOC SIGNO VINCES

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    Yeah the F650 gets great mileage, too, especialy for an 800cc motor.
    If I was going to do any 2 up, the extra 20bhp and six speed would be nice to have.
    Having a hard time justifying an extra $2,300 for those two features.
    #62
  3. roundtripping

    roundtripping Adventourist

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    Well, considering you already get 6 speed with a 658 you're down to one feature :D You may also find the torque curve of the 658 is very two-up friendly.

    Sent from my SAMSUNG-SGH-I727 using Tapatalk
    #63
  4. jttele

    jttele Been here awhile

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    Just went thru the first full tank(s) of fuel with the new ADV tank, and I ran dry at 317 miles. The reserve light came on at 255 miles and then I got 62 miles out of the reserve. I'm showing an average of 47-48 mpg. The only negative I've found so far with the tank is it DOES NOT like to be topped up. Since there is no filler neck per say on the ADV tank, if you try to top it up after it gets close to the top, you will overflow it very easily. I just learned the hard way and the overflow goes down the top plate and spills on the gap at the back of the seat. Anything in the storage area there is doused in gas. Not a problem after I cleaned it up and now I know better. I'm hopeful my school of hard knocks will help somebody else here from doing the same thing! Anyway, the extra range is great and I'm overall very happy with the tank now that I'm adjusting to it.:clap:clap:clap
    #64
  5. GB

    GB . Administrator

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    So that's 507 km! Was this a straight highway run, or was it mixed city and highway riding? I'm planning a straight highway run soon, so we'll see what I get mileage wise.
    #65
  6. jttele

    jttele Been here awhile

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    It was mostly on my commute to work that's probably 60% highway run and 40% rural back roads.
    #66
  7. bobobob

    bobobob IN HOC SIGNO VINCES

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    :lurk
    #67
  8. Happycamper

    Happycamper Have bikes, will travel

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    Scott,

    Any closer? :ear My bike is at the dealer and they will not install until they have the parts. I was planning on picking up the bike from them this Friday :(:
    #68
  9. HappyHighwayman

    HappyHighwayman Been here awhile

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    What's a "658" vs. 650?
    #69
  10. FORE!

    FORE! pretender

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    My manufacturing guy took way longer than expected to build the spacers. They are on their way to your dealer and will be there by Friday.
    #70
  11. WoodWorks

    WoodWorks House Ape

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    Same thing. Some people use 658 to differentiate the twin from the old F650 single.
    #71
  12. GB

    GB . Administrator

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    Thanks Scott for the notification here and by email. I'm doing my first long trip tomorrow and will report back on the range. If fuel continues to rise at the rate it's rising, the adv tank will pay for itself just by its holding capacity of cheaper fuel week to week. :cry Gas is up over 20 cents a liter since January.
    #72
  13. GB

    GB . Administrator

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    I went for a long day's ride in rural western NY state. I was averaging around 4.7 liters/100 km, or 50.4 mpg. The ADV tank holds 1.7 gallons, if you put the bike on the center stand and fill up slowly so you don't overfill it. I was riding mostly backroads speeds ranged from 35 to 65 mph. The ADV tank will yield 79 miles of added range, or about 126 km.

    So, for the day with this type of riding, I would probably run out of fuel by around 525 km, or 326 miles. Pretty good.

    On the GS, you need to fill up with the bike on the side stand, then put it on the center stand to fill up the adv tank, if you want to get every last bit of fuel in there. It's rated at 1.6 gallons, but I was able to fill it up to 1.7 gallons. :freaky
    #73
  14. bobobob

    bobobob IN HOC SIGNO VINCES

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    Any news about the large Givi case on the ADV tank bracket? :ear
    #74
  15. GB

    GB . Administrator

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    It's not going to work. I tried.. The plate needs to be positioned midway thru the advtank rack in order for the quick release red button to be accessible. I thought I could still mount it, then attach RAM ball mounts to the back of the plate and attach them with RAM arms to U bolts attached to the passenger grab handles.. It is doable, it won't be pretty.. so I didn't do it. I did rig it up and it looked goofy and it limits the rider's space to being confined to the front half of the seat.
    #75
  16. bobobob

    bobobob IN HOC SIGNO VINCES

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    That's too bad. Thanks for the update.
    #76
  17. bobobob

    bobobob IN HOC SIGNO VINCES

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    Do we know what top boxes will fit on the ADV tank bracket?
    Even a smaller box than the Givi 55 would be uselful.
    #77
  18. Dieselboy

    Dieselboy Journey not Destination

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    GB thanks for starting this thread. I’ve been eyeballing the ADVTank for a while now but was waiting to see if anyone with Jesse Bags would install...........:ear...........guess that’d be me:


    Jesse bag mounts run over the top of the rear mounting bolts.

    [​IMG]



    This creates a problem with the standard kit provided by AdvTank. Basically everything needs to be jacked up 30mm. So with Threads All M8 x 1.25 (found at local machine shop), I removed the threaded studs and added new ones that were 30mm longer.


    From left to right:

    Front posts: 1) old stud 80mm, 2) old stud in barrel 141mm, 3) new stud 109mm, 4) new stud in barrel 167mm (86mm of thread showing)

    Rear posts: 1) old stud 38mm, 2) old stud in barrel 118mm, 3) new stud 69mm, 4) new stud in barrel 143mm (45mm of thread showing)

    [​IMG]

    Fortunately, AdvTank provides a number of spacers. The pic below shows 1 x 26mm. In my final configuration I used 3 spacers (not pictured) of different lengths (26mm+12mm+6mm) on each front post.

    [​IMG]

    Because the tank is 30mm elevated on the Jesse bag mounting point, I wanted to brace the forward edge of the tank since it is now basically on stilts.

    I trimmed a spare motor mount down to 30mm and then used a router to cut a groove down the center so that it sits flush on the back deck.

    [​IMG]

    [​IMG]

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    I did have to run a tap through the front barrels because the bolts would not fit flush against the top plate. Everything else runs per the instructions.

    [​IMG]

    [​IMG]






    EDIT: Topped the main tank and then filled the AdvTank with 1.6 gallons on the side stand and rode 93 miles. At that point the main tank took 0.45 gallons but the AdvTank would only hold 1.5 gallons (again on the side stand). Guess where the rest went?

    Fortunately The gas cooled the hot muffler and did not combust.....

    So, I think we'll call this good.
    #78
  19. bobobob

    bobobob IN HOC SIGNO VINCES

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    Well that's cool. Any pics with the Jesses on?
    #79
  20. Dieselboy

    Dieselboy Journey not Destination

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    Si claro

    [​IMG]


    [​IMG]


    [​IMG]





    The red bottle is .24 gal. It's my traveling "moron bottle", as in note to self: "you are a moron for passing that last station."

    The Rotopax are pre-advtank and are normally carried empty until I think I want to push and possibly miss gas.

    The nice thing about the AdvTank is that it drains first so the weight disappears early. I will probably keep the Rotopax just because.



    EDIT: Oh yeah! Rode Cody, Wy to Durango, Co. 703 miles. Last leg was 353 miles. I ran some 75mph interstate, mostly 65mph state roads, and screamed through Red Mountain Pass (Ouray, Co). Got 53mpg.

    Went 299 to empty and topped off with the Rotopax. Went 350 miles to the gas station and put in 6.6 gallons.
    My capacity is 7.8 meaning I still had 1.2 in the tank. At 53 mpg I have a 400 mile range!
    #80