Announcement

Collapse
No announcement yet.

High idle cause "lean popping"?

Collapse
X
Collapse
 
  • Page of 2
  • Filter
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
    #1

    High idle cause "lean popping"?

    1982 GS1100e - V&H street megaphone, APE pods

    I was just told that some of my popping may be due to faulty header (header to engine) gaskets. Four separate copper gaskets, I was told.

    I was also told that my high idle (1300-1400 rpm, sometimes 1500 or 1600) could be causing some 'popping'. I was told to adjust the idle to 1100 rpm after fully warmed up.

    While I had this expert on the phone, I forgot to mention an occasional popping sound that seems to come from the intake.

    Suggestions? Second (third and fourth) opinions?
    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.
    Tags: None
    #2
    Popping out the exhaust can be caused by exhaust leaks at the pipe gaskets. Popping through the carbs and the high idle can indicate you have an intake leak, either a vacuum leak at the carbs or at the carb boots would be my first guess.

    Comment

      #3
      High idle and popping out of the carbs means you're lean on the idle circuit, either by air leak or jetting
      1978 GS 1000 (since new)
      1979 GS 1000 (The Fridge, superbike replica project)
      1978 GS 1000 (parts)
      1981 GS 850 (anyone want a project?)
      1981 GPZ 550 (backroad screamer)
      1970 450 Mk IIID (THUMP!)
      2007 DRz 400S
      1999 ATK 490ES
      1994 DR 350SES

      Comment

        #4
        How tight is the megaphone to the collector? If it is a bit loose, when you let off the throttle it will suck in some cold air and cause some popping there. For the intake check all your rubber boots what are they like? Though a high idle popping would (like everyone else has said so far) a lean condition. Get busy.
        sigpicMrBill Been a GSR member on and off since April 2002
        1980 GS 750E Bought new in Feb of 1980
        2015 CAN AM RTS


        Stuff I've done to my bike:dancing: 1100E front end with new Sonic springs, 1100E swing arm conversion with new Progressive shocks installed, 530 sprockets/chain conversion, new SS brake lines, new brake pads. New SS fasteners through out. Rebuilt carbs, new EBC clutch springs and horn installed. New paint. Motor runs strong.

        Comment

          #5
          Originally posted by mrbill5491 View Post
          Get busy.
          Will do. But first, I'm going out for a ride. First spring in a quarter century that I've had a motorcycle. I've got a lot of catching up to do.
          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 Rob S. View Post
            Will do. But first, I'm going out for a ride. First spring in a quarter century that I've had a motorcycle. I've got a lot of catching up to do.

            Okay, then get busy later lol.
            sigpicMrBill Been a GSR member on and off since April 2002
            1980 GS 750E Bought new in Feb of 1980
            2015 CAN AM RTS


            Stuff I've done to my bike:dancing: 1100E front end with new Sonic springs, 1100E swing arm conversion with new Progressive shocks installed, 530 sprockets/chain conversion, new SS brake lines, new brake pads. New SS fasteners through out. Rebuilt carbs, new EBC clutch springs and horn installed. New paint. Motor runs strong.

            Comment

              #7
              Originally posted by Rob S. View Post
              Will do. But first, I'm going out for a ride. First spring in a quarter century that I've had a motorcycle. I've got a lot of catching up to do.
              But think how much MORE you will enjoy it once you are caught up.

              .
              sigpic
              mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
              hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
              #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
              #2 son: 1980 GS1000G
              Family Portrait
              Siblings and Spouses
              Mom's first ride
              Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
              (Click on my username in the upper-left corner for e-mail info.)

              Comment

                #8
                Get new intake boots.
                1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                1985 GS1150ES stock with 85 Red E bodywork.

                Comment

                  #9
                  Originally posted by chef1366 View Post
                  Get new intake boots.
                  Carb to engine? (I'm not much of a mechanic.)
                  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

                    #10
                    Does your choke either not work or idle to the sky?
                    Does the idle hang when you rev the motor?
                    Is the idle really rough but smooth out a bit when warm?
                    1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                    1985 GS1150ES stock with 85 Red E bodywork.

                    Comment

                      #11
                      Originally posted by chef1366 View Post
                      Does your choke either not work or idle to the sky?
                      Does the idle hang when you rev the motor?
                      Is the idle really rough but smooth out a bit when warm?
                      Choke works (one hand helping out down below).

                      Sometimes a little bit of 'hanging'.

                      Smooth, even smoother when warm.

                      Header gaskets, carb boots, or both?
                      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

                        #12
                        Head gasket???
                        no
                        You'd be able to hear a blown head gasket and the bike would run like sh!t.
                        When it is running spray just a little carb spray on the boot on the engine side. If the idle rises you need boots. Make sure you do not overspray and it gets sucked into the filter or you will get a false reading.
                        1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                        1985 GS1150ES stock with 85 Red E bodywork.

                        Comment

                          #13
                          8 valve engine or 16 ?

                          Comment

                            #14
                            Originally posted by Dave8338 View Post
                            8 valve engine or 16 ?
                            Originally posted by Rob S. View Post
                            1982 GS1100e
                            That would be a 16-valve engine.

                            .
                            sigpic
                            mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
                            hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
                            #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
                            #2 son: 1980 GS1000G
                            Family Portrait
                            Siblings and Spouses
                            Mom's first ride
                            Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
                            (Click on my username in the upper-left corner for e-mail info.)

                            Comment

                              #15
                              Originally posted by chef1366 View Post
                              Head gasket???
                              no
                              .
                              I said "header gasket", maybe I should've said exhaust gasket.
                              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

                              Previous 1 2 template Next
                              Working...
                              X