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  • #1

    Slide needle washer plate width...

    Trying different combinations with the jets in the carbs and removing the Dynojet needles and components I put in. With the Dynojet there was an additional washer to put above the lock ring, one is wider than the other. What I can't recall is if it's the smaller or the larger that is stock "washer plate". I think it's the larger one but I can't remember for sure.

    I'm looking at part # 20 on this page, the washer above the clip.

    http://www.yamahapartshouse.net/page...J1100J_-_1982)

    Idears?
    82 XJ1100 Maxim "hurricane"- DEKA EXT18L AGM battery , NGK BPR6EIX spark plugs, Green Dyna coils, Sylvania SilverStar Ultra H4 bulb, 139 dB Stebel Nautilus air horn, Home-made K&N air filter based on an original paper filter frame, new piston rings, Barnett Clutch Springs, SS braid/Teflon brake lines, TKAT fork brace, rebuilt calipers, master cylinders, new brakes, reupholstered seat, lotsa little things and so many answered questions here.
    Tags: None
  • #2
    Hey, I just put in a dynojet kit on Saturday. The wider washer is the stock one, and you need it. The smaller washer that came in the Dynojet kit isn't big enough to catch the spring. The result is that if you don't install the bigger washer, the needle won't be held down by the spring and could get pushed up to the four holed plate that holds the spring down.

    Haven't got my kit tuned yet. I went straight to Stage 3 since I've got a 4-1 and pods. So far, it doesn't idle right... idle speed drops and maybe stalls when I come to a hard stop. Also, it gets all crappy at WOT over 5k rpm... right where the best power used to be. Pretty sure I need to drop the main and pilot air jets down to Stage 1, but I'm going to try them one at a time (pilot air jet first) just in case that works out. Plus, I don't have to pull the carbs to change that jet.
    '80 SG with motor from a '82 XJ

    Comment

    • #3
      Originally posted by BigRed View Post
      Hey, I just put in a dynojet kit on Saturday. The wider washer is the stock one, and you need it. The smaller washer that came in the Dynojet kit isn't big enough to catch the spring. The result is that if you don't install the bigger washer, the needle won't be held down by the spring and could get pushed up to the four holed plate that holds the spring down.

      Haven't got my kit tuned yet. I went straight to Stage 3 since I've got a 4-1 and pods. So far, it doesn't idle right... idle speed drops and maybe stalls when I come to a hard stop. Also, it gets all crappy at WOT over 5k rpm... right where the best power used to be. Pretty sure I need to drop the main and pilot air jets down to Stage 1, but I'm going to try them one at a time (pilot air jet first) just in case that works out. Plus, I don't have to pull the carbs to change that jet.
      You might try the 128 mains. When I first used the Dynojet I had a K&N & Jardines & used stage 1 with 128 mains and it was really powerful. It took longer than my all stock XJ650 to idle and like you, if I came to a sudden stop it would stall. However, once warmed it drove just great. I recently replaced the muffler with original and dropped the 128 to the 124 dynojets and it still had a lot the same power but quieter because of the stock muffler. Am now trying all stock to see how the power & mileage is.

      If you're looking for raw power with good drivability, I'm betting the 128 is your choice of jet.
      82 XJ1100 Maxim "hurricane"- DEKA EXT18L AGM battery , NGK BPR6EIX spark plugs, Green Dyna coils, Sylvania SilverStar Ultra H4 bulb, 139 dB Stebel Nautilus air horn, Home-made K&N air filter based on an original paper filter frame, new piston rings, Barnett Clutch Springs, SS braid/Teflon brake lines, TKAT fork brace, rebuilt calipers, master cylinders, new brakes, reupholstered seat, lotsa little things and so many answered questions here.

      Comment

      • #4
        Thanks for the tip! I closed the mixture screws down to 3/4 turn and put the 128 mains in last night. It was better, but still just a little garbly around 5-7k rpm with WOT. I'm going to try lowering my floats a bit to see if that helps.
        '80 SG with motor from a '82 XJ

        Comment

        • #5
          Originally posted by BigRed View Post
          Thanks for the tip! I closed the mixture screws down to 3/4 turn and put the 128 mains in last night. It was better, but still just a little garbly around 5-7k rpm with WOT. I'm going to try lowering my floats a bit to see if that helps.
          Your main jet size is enormouse! You are probably flooding the engine out once the mains are opening up.
          Nathan
          KD9ARL

          μολὼν λαβέ

          1978 XS1100E
          K&N Filter
          #45 pilot Jet, #137.5 Main Jet
          OEM Exhaust
          ATK Fork Brace
          LED Dash lights
          Ammeter, Oil Pressure, Oil Temp, and Volt Meters
          Green Monster Coils
          SS Brake Lines
          Vision 550 Auto Tensioner

          In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

          Theodore Roosevelt

          Comment

          • #6
            You think? These are DynoJet mains... I believe their numbers represent different flows than the numbers on stock jets, and the DJ needle definitely has a different profile. I think I've got a set of 124 mains in the kit as well that I can go down to if lowering the floats doesn't help. I was already suspecting that the floats were too high based on the drop in RPM I get when I come to a hard stop.
            '80 SG with motor from a '82 XJ

            Comment

            • #7
              Red,

              If you're still having problems with the 128s, definitely give the 124 a go.
              82 XJ1100 Maxim "hurricane"- DEKA EXT18L AGM battery , NGK BPR6EIX spark plugs, Green Dyna coils, Sylvania SilverStar Ultra H4 bulb, 139 dB Stebel Nautilus air horn, Home-made K&N air filter based on an original paper filter frame, new piston rings, Barnett Clutch Springs, SS braid/Teflon brake lines, TKAT fork brace, rebuilt calipers, master cylinders, new brakes, reupholstered seat, lotsa little things and so many answered questions here.

              Comment

              • #8
                Yeah, I remembered that after I posted and dynojets are around 10 over mikuni. So it isn't that large.
                Nathan
                KD9ARL

                μολὼν λαβέ

                1978 XS1100E
                K&N Filter
                #45 pilot Jet, #137.5 Main Jet
                OEM Exhaust
                ATK Fork Brace
                LED Dash lights
                Ammeter, Oil Pressure, Oil Temp, and Volt Meters
                Green Monster Coils
                SS Brake Lines
                Vision 550 Auto Tensioner

                In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                Theodore Roosevelt

                Comment

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