Canisterectomy: Just remove pump but leave canister?

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by BigTony, Nov 5, 2012.

  1. BigTony

    BigTony Been here awhile

    Joined:
    Apr 4, 2011
    Oddometer:
    259
    OK so I'm considering doing a canisterectomy on my '07 990 Adventure. I've read all the 950 how info so I do understand the broad concepts.

    My interest in the canisterectomy is really just that I'm chasing a vacuum leak right now and an opportunity to reduce connections, etc seems worth considering.

    However, I don't like the idea of the tanks just venting to atmosphere. Maybe this is where my understanding is weak, but wouldn't that cause fuel evaporation loss over time, and/or a little bit of dirty air getting into the tanks?

    What I'm wondering is if I could leave the tank vents hooked up to the canister, but then block off the hose outlet on the canister that runs to the pump, and remove the pump and reroute the vacuum lines to connect the two intake manifolds.
    #1
  2. cjracer

    cjracer AWD please!!

    Joined:
    Sep 26, 2005
    Oddometer:
    3,996
    Location:
    Mukwonago, WI
    IMO, if you are concerned about gas evaporation out of the tank vents and loss of fuel. - Your bike would be stored for so long, you should have drained the gas out, b/c it won't be any good when you are ready to use it anyways.

    It's not like at the end of the week of your bike sitting, your tanks will be empty.

    That Gas caps have this rubber trap door thing in it to. Rip the Taps off (CAPecotomy- look that one up too) so you don't get a Vapor lock in that too.

    Do it all, or do nothing.

    Safe travels. :freaky
    #2
  3. rburkat

    rburkat Been here awhile

    Joined:
    Feb 5, 2010
    Oddometer:
    308
    Location:
    Chilliwack, BC
    I simply have a little fuel filter on each of those tank vents. My thinking is that it would filter some of the dust, and of course the filter works in case fuel needs to go through those lines.
    #3