KATANA 1000 crankshaft - welded?

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  • petetherod2002

    #1

    KATANA 1000 crankshaft - welded?

    Can anyone let me know if Suzuki welded the crankshaft on the Katana 1000.
    Thanks Pete
  • Agemax
    Forum Guru
    • Apr 2008
    • 8371
    • plymouth uk

    #2
    Originally posted by petetherod2002
    Can anyone let me know if Suzuki welded the crankshaft on the Katana 1000.
    Thanks Pete
    no they didn't. not on a standard road engine
    1978 GS1085.

    Just remember, an opinion without 3.14 is just an onion!

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    • Dave8338
      Forum LongTimer
      Past Site Supporter
      • Aug 2006
      • 11608
      • Annandale, MN

      #3
      Many were welded by PO's after a spun crank to ensure it didn't happen again. Welcome to the fourm!

      Comment

      • tone

        #4
        As above
        not welded as stock but its a common thing to find

        i believe the 1000 crank was lighter than the 1100 in stock form though, they certainly spin up a lot faster

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        • rphillips
          Forum Guru
          Past Site Supporter
          Super Site Supporter
          • Jun 2005
          • 7612
          • Norene TN

          #5
          I was thinking the rotor was lighter, not the crank.
          1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

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          • Shin-Ken 1074
            Forum Sage
            Past Site Supporter
            Super Site Supporter
            • Feb 2008
            • 1904
            • Brisbane Queensland Australia

            #6
            Not sure on the 1000 models but yes, Suzuki had a welded crankshaft for some 1100S models, there was one in stock at Suzuki Australia in Sydney NSW in 1995 and is not an aftermarket item. I have tried to find the part number for this in my scattered files, not really files just piles of papers and receipts that live in boxes and drawers and various places in the shed. Cheers.
            Badgezz, we don need noh stinkin' badgezz!
            Shin-Ken 1074
            1982 GSX1100SXZ Wire Wheel Katana - BOM Nov 2011
            1981 GSX1135 Katana Build completed Mar 2024, Curb Weight, all fluids and 21 lt fuel = 206 kg.

            Comment

            • rapidray
              Forum Guru
              GSResource Superstar
              • Oct 2006
              • 8195
              • So Cal

              #7
              Originally posted by rphillips
              I was thinking the rotor was lighter, not the crank.
              This is correct. The 1000 had a smaller diameter rotor to lighten up the crank rotating weight. The stator was a smaller diameter also. Ray.

              Comment

              • petetherod2002

                #8
                Welded crank

                Well thanks guys - I now know I shall have to pull the Kat apart to get it done, racing the beast in a Classic Production Class in the UK next year, but also keeping it in road legal trim.

                Here's another one for you - been told that if you use a GSX750 exhaust cam in the Kat 1000 it gives much better performance - anyone else heard of this?

                Great forum - Pete

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