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Clutch slipping above 6k rpm on full throttle. is oem the absolute best replacement?

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    #1

    Clutch slipping above 6k rpm on full throttle. is oem the absolute best replacement?

    The last couple of times that I have been out on my GK, I've noticed that as I go through the gears full throttle, about half way through 3rd gear, I get a slippage. So, it's probably time to to replace the plates.

    What's the collective opinion here on what are the best plates to get?

    I'm just adding a clutch change out to my winter maintenance list, along with adj vlv's, synch carbs, change to 17" rear wheel, install salty monk brake upgrd (finally) w/stainlees lines, etc.

    FYI: I've been using Shell 20w40 diesel DelVac oil.
    Tags: None
    #2
    How's the free play on your clutch lever/cable?

    Comment

      #3
      Before you go after the plates, buy a set of Emgo or Parts Unlimited clutch springs (they don't cost much at all), and swap out three of them with the springs currently in there (leaving three of the original ones in) and try that. They are quite stiff, and most of the time just doing that will take care of slippage.
      sigpic

      SUZUKI:       1978 GS1000E; 1980 GS1000G; 1982 GS650E; 1982 GS1100G; 1982 GS1100E; 1985 GS700ES
      HONDA: 1981 CB900F Super Sport
      KAWASAKI: 1981 KZ550A-2; 1984 ZX750A-2 (aka GPZ750); 1984 KZ700A-1
      YAMAHA: 1983 XJ750RK Seca

      Free speech is the foundation of an open society. Each time a society bans a word or phrase it deems “offensive”, it chips away at that very foundation upon which it was built.

      Comment

        #4
        good advice on the springs, but I'm not sure I want to have a stiffer clutch lever.

        Comment

          #5
          Personally, I have no problems with the stock springs. A set of six will cost about $20, the gasket is about $10.

          For a total of about $30, you will have a well-grabbing clutch with a relatively light feel at the lever.

          .
          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

            #6
            Agree with replacing the springs with stock and trying again. Worst case, order new OEM plates if it still slips.
            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

              #7
              thanks guys! No mater what, I need to replace the 30+yr old springs! & the only risk is that I could need a second clutch cover gasket, NBD!

              Comment

                #8
                When you do the job, leave the bike on the side stand, there will be no need to drain the oil.

                .
                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

                  #9
                  Good point!

                  Comment

                    #10
                    Deglaze the steels with 00 steel wool and WD 40.
                    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
                      GS Zone - Clutches
                      http://gszone.biz/clutches.html
                      Speed Merchant
                      http://www.gszone.biz

                      Comment

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