SMS 630 Pressurized gas tank ?

Discussion in '610/630' started by sms 630_newbie, Nov 15, 2011.

  1. sms 630_newbie Husqvarna

    What is the deal with all the pressure when i remove the gas cap? Also I can here that little one way valve behind the right Radiator "farting" into the Fugly Charcoal can on the right lower frame. I want to remove the ugly looking thing before it gets Knocked off. I heard you can .....but gas can siphon out that vent hose on upper left of the tank . Does the tank vent any other way ?
    How many of you guys have pulled the charcoal can off your TE / SMS 630.? :thinking:
  2. RDTCU Husqvarna
    Pro Class

    Husqvarna Motorcycle:
    '11 630SMS
    Pulled mine as soon as I got it home, and connected the hose coming from the tank to the hose under the frame with a double-male nipple. Some people remove the one way valve in really hot areas to keep the tank pressure down, but I've never had a problem. Once it breaks in a bit it won't "fart" quite as noticeably, but it will still vent and keep fuel from escaping. That is the only tank vent on the 630. Some tanks have another nipple further down the left side that is just a drain from the gas-cap area to remove rain water or tank overflow.
  3. sms 630_newbie Husqvarna

    so that "fume" valve will loosen up a bit in time huh? And you say the gas cap is Not vented?
  4. sms 630_newbie Husqvarna

    Did you just plug the port on the "intake" with a little rubber style plug ?
  5. RDTCU Husqvarna
    Pro Class

    Husqvarna Motorcycle:
    '11 630SMS
    The gas cap is not vented, and I capped off the vacuum nipple with a vacuum cap. They come in assorted packs at AutoZone.
  6. mekanik Husqvarna
    AA Class

    Location:
    Kootenays, Canada
    Husqvarna Motorcycle:
    TE630
    Gotta remove the canister, And the sound of the 630 belching after a meal of sweet single track isn't something to begrudge the beast.:cheers: