Any need to clean this fuel tank?

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  • DaveP
    Forum Mentor
    • Apr 2014
    • 170
    • MA

    #1

    Any need to clean this fuel tank?

    1981 GS650L fuel tank:



    Was considering trying out the electrolysis method of fuel tank cleaning with Arm and Hammer Super Washing Soda, but the tank does not show much signs of rust. Fuel cock strainer also looks clean. The thing next to the fuel cock appears to be a bit of paper towel or something that has been in the tank for who knows how long. Bike has not run for a few years and was dry at recent purchase.

    I am concerned that if I try to remove the small amount of rust visible that I might cause issues rather than improve anything.

    Thoughts?

    Thanks,
    Dave
    Blog of my motorcycle projects - http://twowheeljunkie.wordpress.com/
    1981 Suzuki GS650L - Project Bike - Sold
    2013 Suzuki SFV650 - Sold
    2016 Ducati Multistrada 1200 Touring
  • tom203
    Forum Guru
    Past Site Supporter
    • Aug 2010
    • 8925
    • Norway,Maine

    #2
    My tank looks similar, no problem,so leave yours alone. But get a new petcock as present for your bike! Z1 or georgefix has them



    The link shows a petcock with more reserve- there is another version with less reserve.

    Edit. There are sealing washers under petcock mounting bolts- about 35 cents each at decent hardware store. The 1/4 inch size works on the 6mm bolts just fine.
    Last edited by tom203; 07-22-2014, 02:25 PM. Reason: Read other post
    1981 gs650L

    "We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin

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    • DaveP
      Forum Mentor
      • Apr 2014
      • 170
      • MA

      #3
      I think you were reading my mind about the new petcock and gaskets:
      Blog of my motorcycle projects - http://twowheeljunkie.wordpress.com/
      1981 Suzuki GS650L - Project Bike - Sold
      2013 Suzuki SFV650 - Sold
      2016 Ducati Multistrada 1200 Touring

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      • tkent02
        Forum LongTimer
        Past Site Supporter
        • Jan 2006
        • 35571
        • Near South Park

        #4
        That one looks a lot cleaner than most. Even if there is a tiny bit of rust down near the bottom seam, it won't hurt anything unless there's enough to come loose and clog things up.

        If your petcock screen and carbs are staying clean that's good enough. If they are getting rusty sediment in the float bowls then you should clean the tank.
        http://img.photobucket.com/albums/v5...tatesMap-1.jpg

        Life is too short to ride an L.

        Comment

        • Devon bloke

          #5
          Originally posted by DaveP
          1981 GS650L fuel tank:



          Was considering trying out the electrolysis method of fuel tank cleaning with Arm and Hammer Super Washing Soda, but the tank does not show much signs of rust. Fuel cock strainer also looks clean. The thing next to the fuel cock appears to be a bit of paper towel or something that has been in the tank for who knows how long. Bike has not run for a few years and was dry at recent purchase.

          I am concerned that if I try to remove the small amount of rust visible that I might cause issues rather than improve anything.

          Thoughts?

          Thanks,
          Dave


          You think thats bad? Check mine out

          Comment

          • bwringer
            Forum LongTimer
            Bard Award Winner
            GSResource Superstar
            Past Site Supporter
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            • Oct 2003
            • 17072
            • Indianapolis

            #6
            There are lots of much newer bikes running around with much worse corrosion.

            Ride it!
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            • DaveP
              Forum Mentor
              • Apr 2014
              • 170
              • MA

              #7
              Devon, You Win . Tank will be going back on this weekend.
              Blog of my motorcycle projects - http://twowheeljunkie.wordpress.com/
              1981 Suzuki GS650L - Project Bike - Sold
              2013 Suzuki SFV650 - Sold
              2016 Ducati Multistrada 1200 Touring

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