Announcement

Collapse
No announcement yet.

'78 GS750E - Pilot Fuel Screw?

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    '78 GS750E - Pilot Fuel Screw?

    I'm in the process of cleaning out the carbs and am following the VM manual. I've gotten to removing the Pilot Fuel Screw and cannot seem to find it anywhere. Can someone please point out where I would find this? Is it covered by the float bowl, or is it somewhere on the outside of the main carb body?

    Tags: None
    #2
    The very back hole to the right of the brass enrichment circuit feed tube.
    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

      #3
      Dont forget the mixture screws on the side of the throats.
      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

        #4
        Sorry, I'm newb. Could you dumb it down a bit for me? I don't see anything left, anywhere on the body that will accept a flat screwdriver. Also, not sure where to find the "mixture screws on the side of the throats".

        There are holes with round things in them that I can only describe as looking like a bullet in the chamber.

        Comment

          #5
          Jeff.. Now that we have established WHY there arent any pilot screws in your carbs and why you CANT see thru the holes, here is the tutorial on how to remove the broken off pilot screw tips. like I told you on the phone, I use sharpened wire coat hanger rod. Very fine point and just a few rather gentle taps ( dont wind up like your driving nails ) and the tips should pop out.

          Then proceed to dip and rebuild per the tutorial. And if you remove the plastic bucket from the Berrymans can you will be able to do 2 bodies at the same time side by side..tight fit but they will go in.

          http://members.dslextreme.com/users/cbsaunders/gs/pilot_screw_removal.pdf
          Last edited by chuck hahn; 09-21-2014, 05:04 PM.
          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

            #6
            Chuck, thanks again for taking my call! I managed to get a bot better photo down the screw hole to show you what I see in all 4 carbs.

            Comment

              #7
              Thats the pilot screw port. I cant exactly tell whats in the bottom, but like i said, theres a tiny hole at the bottom that goes thru to the bottom of the throats...the one you saw where I told you to look. Take that bread tie and see if it will poke thru there too.

              Looking at the flatness of the bottom of that hole, I now wonder if the previous owner tried putting the side mixture screws in there instead of the pointy pilot screws. That would basically smash the tappered sides of the hole and push carb body material into the hole and wedge them shut.

              Maybe you dont have broken tips now that i see the picture. Maybe you got smashed in seating surfaces in there. Try the bread tie first. If the wire goes in at all then the tips arent in there..which moist likely leads me to the second possibility. And hate to be the bearer of bad news, but IF the previous owner did jam the mixture screws in and ruin the seats..........those carb bodies are now junk.
              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

                #8
                Broken tips would look like just a tiny speck of goldish brass looking stuff way down at the bottom of the hole..those look smashed in to me. Thats my best opinion here Jeff. I am gonna PM you.
                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

                  #9
                  I straightened out a paperclip and was able to get it about 1/8" - 1/4" into the hole before it bottoms out on something. It's definitely not coming out so I think you might be right about the worst case.

                  Comment

                    #10
                    Yup...If the tip was in there you wouldnt be able to get it in past the rim of the hole...see your PMs..I got the solution....LOL
                    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

                    Previous template Next
                    Working...
                    X