rust in my track

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  • Master077
    • Mar 2026

    #1

    rust in my track

    Have any of you guys used this product KREEM MOTORCYCLE GAS TANK SEALER LINER
  • Guest

    #2
    Alot of people have used it but consensus say's the better product is POR15 , as I understand there have been some bad experiences with the KREEM. I personally don't like to use a tank sealer if possible, but when I do I use the POR15 and make sure you follow the directions to the letter.

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    • Big T
      Forum LongTimer
      Past Site Supporter
      Super Site Supporter
      • Mar 2005
      • 12414
      • West Slope, OR

      #3
      Cleaning up the rust and acid etching prep are really important

      I have a tank lined with Kreem 30 years ago, still intact

      How rusty is your tank?
      1978 GS 1000 (since new)
      1979 GS 1000 (The Fridge, superbike replica project)
      1978 GS 1000 (parts)
      1981 GS 850 (anyone want a project?)
      1981 GPZ 550 (backroad screamer)
      1970 450 Mk IIID (THUMP!)
      2007 DRz 400S
      1999 ATK 490ES
      1994 DR 350SES

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      • Master077

        #4
        There is only alittle bit

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        • Nessism
          Forum LongTimer
          GSResource Superstar
          Past Site Supporter
          Super Site Supporter
          • Mar 2006
          • 35808
          • Torrance, CA

          #5
          Originally posted by Master077
          There is only alittle bit
          Hit up Home Depot and buy some "Metal Prep" (phosphoric acid). Make some plugs and dump in the sauce. Rotate the tank every 5 mins. for an hour or so until the rust is gone. Save the solution and rinse the tank with water. There may be a little flash rust form but don't worry about it. Get some gas in there as soon as possible, including a little bit to use as a washout for the water. This should work unless you have heavy rust. If so, use the same sauce but seal the tank after you derust it.
          Ed

          To measure is to know.

          Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

          Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

          Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

          KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

          Comment

          • lonerider00

            #6
            All my tanks get Por15... In fact, I just finished doing one about an hour ago... The only drawback is that it needs to cure for 96 hours before you can use it. Now I can't ride until Sunday

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

              #7
              Clean the rust out, keep gas in it, liners are not necessary unless you plan on letting your bike sit for months.
              http://img.photobucket.com/albums/v5...tatesMap-1.jpg

              Life is too short to ride an L.

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              • Roscoe

                #8
                Originally posted by Master077
                Have any of you guys used this product KREEM MOTORCYCLE GAS TANK SEALER LINER
                Bought a Skunk (pre-CL/eBay) one day the owner had Kreemed while petcock still on and set to prime. He could not figure why fuel starvation.
                No offense to others but he lived on the Kent East hill. (Non-locals can YouTube Almost Live episodes :'Kent')
                Now THAT was a carb to clean!
                Still sitting on display with the float bowl off!

                Comment

                • eil
                  Forum Sage
                  • Dec 2012
                  • 3062
                  • SE Michigan

                  #9
                  If it were mine, I wouldn't bother with tank liner over a little bit of rust. Rust is easily (and cheaply) removed with vinegar or electrolysis. After treatment, rinse the tank with gas or kerosene and you're good to go.
                  Charles
                  --
                  1979 Suzuki GS850G

                  Read BassCliff's GSR Greeting and Mega-Welcome!

                  Comment

                  • Gregory
                    Forum Sage
                    Past Site Supporter
                    • Sep 2012
                    • 2068
                    • Southlake - DFW - North Texas

                    #10
                    caswells liner worked good for me
                    82 gs1100e FAUX Skunk
                    80 gs1000s

                    Comment

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

                      #11
                      Kreem is krap.

                      It failed for me, and I've seen it fail for others.

                      The kits from Por15 and Caswells are widely known to work well.
                      1983 GS850G, Cosmos Blue.
                      2005 KLR685, Aztec Pink - Turd II.3, the ReReReTurdening
                      2015 Yamaha FJ-09, Magma Red Power Corrupts...
                      Eat more venison.

                      Please provide details. The GSR Hive Mind is nearly omniscient, but not yet clairvoyant.

                      Celeriter equita, converteque saepe.

                      SUPPORT THIS SITE! DONATE TODAY!

                      Co-host of Radio TRO, THE sport-touring motorcycling podcast. Listen at podcast.tro.bike!

                      Comment

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

                        #12
                        +1, stick with the known good ones. Pulling out failed Kreem is not a nice way to spend a week.
                        http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                        Life is too short to ride an L.

                        Comment

                        • Guest

                          #13
                          Kreem was ok until they started putting alcohol in the gas. I would stay far away from it now.

                          Comment

                          • Tempted

                            #14
                            I use electrolysis. I turned a microwave transformer into a 20vdc power supply and attach it to a mild steel welding electrode. It cleans the tank over night.

                            Comment

                            • Master077

                              #15
                              Thank you guys for your input!!! I can't wait to get my bike running again! !!!!

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