Announcement

Collapse
No announcement yet.

450 idle screw

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    450 idle screw

    After searching and only finding "how to's" for 4 cylinder Gs's. I felt I had to ask.
    2 1/2 turns is the starting point for the idle screw, Right?
    I cleaned both carbs, but I did not mess with them thinking the idle was great before.
    (I know that was dumb now)
    I counted the complete 360* turns and they where both set at 6 full turns.


    14053952_528397774024165_46518916640565038_n.jpg

    #2
    If you did not take them out and clean out the passages then you haven't "cleaned" the carbs.

    6 full turns is almost falling out - what is the bike running as far as exhaust / airbox.
    Current:
    Z1300A5 Locomotive (swapped my Intruder for it), GS450 Cafe Project (might never finish it....), XT500 Commuter (I know - it's a Yamaha :eek:)

    Past:
    VL1500 Intruder (swapped for Z1300), ZX9R Streetfighter (lets face it - too fast....), 1984 GSX750EF, 1984 GSX1100EF (AKA GS1150)
    And a bunch of other crap Yamahas....

    Comment


      #3
      If you look on Basscliff's website he has a rebuild tutorial for the 450 carbs.

      2.5 turns is a good starting point. At more than about 3.5 or 4 turns the circuit will be maxed out.
      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


        #4
        Originally posted by hillsy View Post
        If you did not take them out and clean out the passages then you haven't "cleaned" the carbs.

        6 full turns is almost falling out - what is the bike running as far as exhaust / airbox.
        It has the stock airbox with a bad diy filter. Also has the stock pipes but the mufflers look to be "uncorked".

        13934660_523418067855469_5406414314203017120_n.jpg

        Comment


          #5
          Hard to tell from the pic, but if I was you I'd re-clean the carbs (take out the idle screws this time) and try it with 2 1/2 turns. If it's too lean, then adjust them out.

          If you get to 6 turns then you need a larger pilot jet.
          Current:
          Z1300A5 Locomotive (swapped my Intruder for it), GS450 Cafe Project (might never finish it....), XT500 Commuter (I know - it's a Yamaha :eek:)

          Past:
          VL1500 Intruder (swapped for Z1300), ZX9R Streetfighter (lets face it - too fast....), 1984 GSX750EF, 1984 GSX1100EF (AKA GS1150)
          And a bunch of other crap Yamahas....

          Comment

          Working...
          X