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    #1

    Full choke start rpms

    From the July 1982 Cycle World test of my bike:

    "The engine starts immediately on full choke and then goes to about 4500-rpm-and-climbing unless the choke is quickly backed off..."

    Until yesterday, my bike always did that. Now it goes to just shy of 3000 rpm and goes no higher. It still starts and runs well, I'm just wondering why this very noticeable change. Any thoughts?
    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
    You thought you might have a partially clogged exhaust from your other post, right? That would certainly slow the RPM down with or without the choke. Could also be something changed in the choke, like maybe one of the choke fuel feed passages clogged but that would not change the sound of the exhaust. Did you take that muffler apart yet?
    http://img.photobucket.com/albums/v5...tatesMap-1.jpg

    Life is too short to ride an L.

    Comment

      #3
      Could be some crud getting in the jets as well???
      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
        Didn't unbolt and remove the baffle yet, just sprayed some WD-40 to facilitate it's removal.

        I'm thinking maybe this winter it's time for the full carb treatment. Couldn't hurt, and I'll finally be able to operate the choke with just my left thumb.
        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

          #5
          Rob.....I know I will get some flack for posting this, but if its just a matter of freshening up the passages and the jets after some sitting I will start the bike and then remove the tank after its ran a few minutes. Then I will get the gravity bottle and dump in a full can of Berrymans B12 Chemtool..no gas. Then start the bike and let it idle and drink the Berrymans till the bottle is empty. Cleans the floats seats, jets, and all the passages quite effectively. Just my 2 cents.

          This is what I use. Compared to Berrymans, Seafoam ( to my experiences ) is a joke.

          Berryman 16 fl oz B-12 Chemtool Total Fuel System Clean-Up by Berryman at Fleet Farm
          http://www.fleetfarm.com/detail/Berryman-B-12-Chemtool-Total-Fuel-System-Clean-Up---15-Oz./0000000225419?utm_source=googleps&utm_medium=shopping%2Bsearch&utm_campaign=google%2Bproduct%20search&gslfah&gclid=Cj0KEQiA2b20BRDj4buduIG-y9EBEiQAhgMGFSMzIDOaF-7pQBxxYVeFbY6cNdkAxz4nwRflLqufDY0aAqDI8P8HAQ
          Find theBerryman 16 fl oz B-12 Chemtool Total Fuel System Clean-Up by Berryman at Fleet Farm. We have low prices and a great selection on all Fuel Treatments & Cleaners.
          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
            Must be something wrong with mine then too. Generally I get about 2500 rpm on full choke increasing to twice that at about 2/3 if I leave it there long enough and dropping again to 1500 at about 1/4. Seems to depend on the day exactly what you get.
            97 R1100R
            Previous
            80 GS850G, 79 Z400B, 85 R100RT, 80 Z650D, 76 CB200

            Comment

              #7
              Berryman's...I'll order some. Thanks, Chuck.

              I just put a bottle of "Ethanol Shield Fuel Stabilizer" (only type local store has) in the tank.

              I've been reluctant to touch the carbs because she starts and runs so well. I know they could still look disgusting inside. The only complaint I've ever had with them is the helping hand needed on the carbs to work the choke. And a little bit of what I call 'spitting' (popping?) from the pods.

              I hate what they've done to our gasoline.
              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

                #8
                Stabil now makes a "Storage" formula as well.
                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
                  Forget the Stabil "Storage" (red) and get the Marine stuff (blue) - much better product at sucking up water/ethanol mix.
                  1981 gs650L

                  "We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin

                  Comment

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