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Oil with the best ant ifoaming prperties

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    #16
    The right oil question is so funny! Everybody overthinks it really. We are driving 30+ year old bikes, designed to survive on the oil offerings back then.

    Simply pick a high quality motorcycle oil, or our good old Rotella or equivalent and run it! Change it frequently. If you want more info look at other high performance air-cooled engines and see what they run, such as Porsche.

    How many of these GS engines die of an oil problem such as a poor quality lubricicant. Ignore an over stressed engine as in wild mods.

    cheers
    1978 Gs1085 compliments of Popy Yosh, Bandit 1200 wheels and front end, VM33 Smoothbores, Yosh exhaust, braced frame, ported polished head
    1983 Gs1100ESD, rebuild finished! Body paintwork happening winter 2017

    I would rather trust my bike to a technician that reads the service manual than some backyardigan that THINKS HE KNOWS how to fix things.

    Comment


      #17
      Chuck, I did a quick google search and it seems there are various things you can do to help your TX engine live. Things like increasing sump capacity to modifying the oiling system passages. I didn't do a deep dive on this subject but there are options. http://www.tobyfolwick.com/tx750/

      As for oil, I'd make sure to use a high ZDDP oil like Brad Penn V2. The TX engine seems to run hot so 20W-50 might be in order for riding in OK
      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


        #18
        Ive read all that ED and Im a member on the TX forum. If i could ever find a 74 engine or the extended sump collar that was the "fix" back then I would be all set. But for now I want the best advice on the best oil so I can enjoy it without that nagging " whens the cams gonna burn out on me " feeeling.
        MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
        1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

        NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


        I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

        Comment


          #19
          Originally posted by Fjbj40 View Post
          The right oil question is so funny! Everybody overthinks it really. We are driving 30+ year old bikes, designed to survive on the oil offerings back then.

          Simply pick a high quality motorcycle oil, or our good old Rotella or equivalent and run it! Change it frequently. If you want more info look at other high performance air-cooled engines and see what they run, such as Porsche.

          How many of these GS engines die of an oil problem such as a poor quality lubricicant. Ignore an over stressed engine as in wild mods.

          cheers
          It's more than that. He's asking about anti foam in the oil because of the TX engine design. I would try the Honda HP4 synthetic. Modern diesel oils might provide enough anti foaming also.
          Last edited by simmoto; 04-09-2017, 07:40 PM.

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            #20
            I thought the problem was exacerbated by high RPMs. Hopefully, if you ride it easily, you won't have a problem.

            I say ride it now. If you have a problem later, you will be in the same boat that you are in now., which is not being able to ride it. For what its worth, I recently bought new repop calipers for my RD400 from HVC Cycle. I think that you have the same ones in the TX.

            There used to be one of those in my neighborhood when I lived in HB. It was painted black, and had the "grills" shaved from the side covers to make them look smooth. It was a good looking machine.
            sigpic Too old, too many bikes, too many cars, too many things

            Comment


              #21
              Can you get Morris oils in the US ? They do a range of castor base oils specifically for old race engines.
              For the limited use your TX will see - and given how fragile they are - I'd look seriously at using this stuff.

              Castor is still the absolute best in marginal lubrication conditions - and it doesn't seem to foam much at all.

              Comment


                #22
                Simmotos above post has that one key word in it about the diesel oils..such as the Rotella T we run in our GSs. "Might" is the word I am trying to decisively eliminate from my worries when it comes to this engine not being smoked again due to foamed up oils.
                MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                Comment


                  #23
                  Evonik offers a patented range of high performance defoamers for lubricating oil applications.


                  Viscoplex defoamer additive. This stuff works. No clue where you can get it and how much though. Contact info on the Evonix website. Worth a try.
                  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


                    #24
                    Bookmarked..thanks Ed.
                    MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                    1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                    NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                    I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                    Comment


                      #25
                      OK....UPDATE. So I went and got this oil at the local Honda shop. Write up says nit has enhanced anti foaming qualities. We shall see how the old TX does with this stuff in her belly.
                      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                      Comment


                        #26
                        Originally posted by chuck hahn View Post
                        OK....UPDATE. So I went and got this oil at the local Honda shop.
                        What is "this" oil?
                        De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

                        http://www.thegsresources.com/_forum...35#post1625535

                        Comment


                          #27
                          OOPs!! Honda HP4 synthetic blend Dale.


                          MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                          1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                          NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                          I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                          Comment


                            #28
                            Originally posted by 850 Combat View Post
                            I thought the problem was exacerbated by high RPMs. Hopefully, if you ride it easily, you won't have a problem.

                            I say ride it now. If you have a problem later, you will be in the same boat that you are in now., which is not being able to ride it. For what its worth, I recently bought new repop calipers for my RD400 from HVC Cycle. I think that you have the same ones in the TX.

                            There used to be one of those in my neighborhood when I lived in HB. It was painted black, and had the "grills" shaved from the side covers to make them look smooth. It was a good looking machine.
                            HVC is local to me, just checking their website, didn't know they were in to all that. The owner is a big RD guy and Yamaha guy.

                            I'm with you, get the oil and start riding Chuck

                            Comment

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