Announcement

Collapse
No announcement yet.

High idle in first gear? Gs450L

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

    High idle in first gear? Gs450L

    While in first gear, my bike brings itself to 4k rpm and seems to hang there. I just replaced the intake boots and outlet hoses and taking a quick ride up the street that it wants to hang there. Noticed it when downshifting from 2nd to 1st, I was definitely slow enough for the gear change but it read 4k on the tach. There must be something I’m missing here. Help

    Purchased dead in the water
    my beloved 1985 Gs450l

    Maintenance history:
    carburetors cleaned and rebuilt
    bench synced the carbs with a needle
    floats set at bike shop (arrived a dripping mess from p.o.)
    new diaphragms
    new intake boots and air box hoses
    airbox filter cleaned and misted with oil
    (sealed to the best of my ability with a gasket made of peel and stick roofing rubber)

    I spend every free moment trying to research and learn about these Suzukis cos they’re just cool asf in my opinion. wrenching is my favorite past time I’m months deep in my project at this point, that said I’m ready to ride it too

    Tags: 1985, gs450l, high idle, idle, troubleshooting
    #2
    Air screw also set 2.5-2 3/4 turns out. Idles @ 1k not under load

    Comment

      #3
      So if you shift to neutral it idles lower?
      1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

      2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

      Comment

        #4
        Originally posted by Hihowyaderrin View Post
        Air screw also set 2.5-2 3/4 turns out. Idles @ 1k not under load
        Throttle cable smooth and snapping back?
        1000 is a low idle speed.
        where'd you get the spec for air screw?
        Last edited by Cipher; Yesterday, 01:06 AM.
        1983 GS 550 LD
        2009 BMW K1300s

        Comment

          #5
          Something I'm missing also. Say you're sitting on the bike on the side stand. You're in neutral and it has a proper idle (say 1k). You pull the clutch lever in. Any change in idle? (Shouldn't be). You shift down to first. Any change? What if you shift up to second instead?

          In any case, a hanging idle is usually indicative of an intake leak. And since you just changed the intake boots...draw your own conclusions.

          Welcome to the site. (Spraying starting fluid around the boots might help locate the leak.)
          1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

          2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

          Comment

            #6
            Originally posted by Cipher View Post

            Throttle cable smooth and snapping back?
            1000 is a low idle speed.
            where'd you get the spec for air screw?

            throttle cable seems smooth and snapping back
            what is the recommended idle speed?
            I got the spec from a manual posted on FB for carb cleaning

            Comment

              #7
              Originally posted by Rob S. View Post
              Something I'm missing also. Say you're sitting on the bike on the side stand. You're in neutral and it has a proper idle (say 1k). You pull the clutch lever in. Any change in idle? (Shouldn't be). You shift down to first. Any change? What if you shift up to second instead?

              In any case, a hanging idle is usually indicative of an intake leak. And since you just changed the intake boots...draw your own conclusions.
              I torqued the boots down firmly but tried not to over tighten in dear of stripping the cylinder threads

              Comment

                #8
                Originally posted by Hihowyaderrin View Post


                throttle cable seems smooth and snapping back
                what is the recommended idle speed?
                I got the spec from a manual posted on FB for carb cleaning
                1100-1200
                BikeCliff's Website
                https://gsarchive.bwringer.com/
                Suzuki GS motorcycles maintenance and information (GS850GT)

                Clymer manual here
                1983 GS 550 LD
                2009 BMW K1300s
                • Likes 1

                Comment

                  #9
                  Now it just seems to be happening out of nowhere, even in idle. Could the fuel line being pinched cause it? It has to be simple

                  Comment

                  Previous template Next
                  Working...
                  X