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vm carb tuning 78 gs 1000

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    #31
    Originally posted by chuck hahn View Post
    That rattle or CHUGGING is because you now need to vacuum sync the carbs and verify the timing is correct. The bench sync is intended to get the slides "close enough" to start and maintain it running. Now the fine tuning begins. Obviously the timing and syncing cant be done untill it will run and maintain itself..right???

    Once you have verified the timing and the carbs are synced with gauges, you can then fine tune with the side mixture screws. If, after all that, you still hear a clunking, pull in the clutch lever and listen for the sound to change or even disappear. Dont worry about the clutch hub hut, springs in the back etc etc till your done with the tuning
    Awsome .. thank you !! Now just have to find someone local with the tool to do that .. as for the rumbling around in the clutch , that was there since I got the bike .. im thinking exactly that hub nut and springs rattling ..

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      #32
      Originally posted by lrgguy View Post
      OHHH BABY !!! FIRED RIGHT UP !!
      like what was said just had to adjust the big idle screw 1 turn ... idling right at 1100 rpm , if I turn the idle down to 1000 I start getting that rattle in the clutch basket .. which is going to be one of the next projects .. taking this girl out for aride and see how she behaves ..
      Thx again to you both ..
      Niiiice. I learned a thing or two here.

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        #33
        You may be right to some extent..but the majority will be well gone once the timing is set to be 100% sure thats spot on and the gauge synching is done. Then its time to turn attention to opening the case and do some clutch inspections.

        One step at a time grasshopper.
        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.

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          #34
          Originally posted by Morrison View Post
          Niiiice. I learned a thing or two here.
          Yeah as too did I !! When people take the time to not only explain things but simplify the hole process , you realy feel as though you not only acomplished something , but learned a hole lot in the process !!

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            #35
            Originally posted by chuck hahn View Post
            You may be right to some extent..but the majority will be well gone once the timing is set to be 100% sure thats spot on and the gauge synching is done. Then its time to turn attention to opening the case and do some clutch inspections.

            One step at a time grasshopper.
            Can express my gratitude enough .. ty

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              #36
              Just spent the last hr riding !! Bike runs like it has never run before , since I have owned it , and knock on wood ... smoke has not came out if the right exhaust as of yet , unlike it was before every time I came to a stop ...
              Fourth gear there is a small bit of hesitation when you crack the throttle .. 5 th gear .... HOLD ON BABY !!

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                #37
                Originally posted by lrgguy View Post
                Just spent the last hr riding !! Bike runs like it has never run before , since I have owned it , and knock on wood ... smoke has not came out if the right exhaust as of yet , unlike it was before every time I came to a stop ...
                Fourth gear there is a small bit of hesitation when you crack the throttle .. 5 th gear .... HOLD ON BABY !!
                The hesitation, how much RPM and how much throttle?
                http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                Life is too short to ride an L.

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                  #38
                  Spoke to soon .... smoke came out of the right exhaust pipe twice when stopped at lights on the ride home ... hoping a new petcock will rectify that!! Still getting a very small amount Iif gas in the vacume line after a 1 1/2 ride ... hope its not a head gasket or a valve seal ??

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                    #39
                    Originally posted by lrgguy View Post
                    ... hope its not a head gasket or a valve seal ??
                    Not likely.
                    http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                    Life is too short to ride an L.

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                      #40
                      Originally posted by tkent02 View Post
                      The hesitation, how much RPM and how much throttle?
                      As soon as I click it into 4 th gear . Didnt pay to much attention as to rpm guessing 5000 rpm 1/4 -1/2 throttle approx

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                        #41
                        Originally posted by tkent02 View Post
                        Not likely.
                        This only happens after approx 11/2 hrs of riding .or weather it be thats how long It takes for a very small mount of gas to build up in the vacume line .. im talking a couple drops ...
                        As for first 2 nd 3 rd you best be holding on when you crack that throttle !!
                        Up till nowi was thinking what the heck my 83 gs 650 has more ballsthen this !!

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                          #42
                          An '83 650E is almost as powerful, and a lot lighter. It's a pretty quick bike.
                          http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                          Life is too short to ride an L.

                          Comment

                            #43
                            Originally posted by tkent02 View Post
                            An '83 650E is almost as powerful, and a lot lighter. It's a pretty quick bike.
                            Its a650 gl and im 6 ft 3 , 250 lbs !! Hahaha that bike I just threw around ..lol

                            The 1000e fits me much nicer ..
                            Last edited by Guest; 06-19-2014, 11:28 PM.

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                              #44
                              Glad to hear things are moving along well, and bike seems to be running nice....

                              Spyug has a carbtuune, perhaps if you invite him over, and have a few cold ones on hand, I am sure the carbtune will be available for the sync....

                              .

                              Comment

                                #45
                                Originally posted by GateKeeper View Post
                                Glad to hear things are moving along well, and bike seems to be running nice....

                                Spyug has a carbtuune, perhaps if you invite him over, and have a few cold ones on hand, I am sure the carbtune will be available for the sync....

                                .
                                I have a 24 of canadian that been sitting in the closet un opened since x mas .. hahaha ,

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