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engine vibration 3500 to 4100 rpm

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  • engine vibration 3500 to 4100 rpm

    I have a 95 katana 600. I have an engine viberation/buzz from 3500 to 4100 after that it smooths out and runs fine. Anyone have an idea. Thanks for any help.

  • #2
    Re: engine vibration 3500 to 4100 rpm

    Originally posted by turtleescape
    I have a 95 katana 600. I have an engine viberation/buzz from 3500 to 4100 after that it smooths out and runs fine. Anyone have an idea. Thanks for any help.
    Nature of the beast basically. Most will get the Ivan Performance carb kit and that does help take the buz/vibration out of it.
    TDA Racing/Motorsports
    1982 Honda CB750 Nighthawk, 1978 Suzuki GS750 1986 Honda CBR600 Hurricane; 1978 Suzuki GS1100E; 1982 Honda CB750F supersport, 1993 Suzuki Katana GSX750FP. 1981 Suzuki GS1100E (heavily Modified) http://katriders.com/vb/showthread.php?t=94258
    Who knows what is next?
    Builder of the KOTM Mreedohio september winning chrome project. I consider this one to be one of my bikes also!
    Please look at this build! http://katriders.com/vb/showthread.php?t=91192

    Comment


    • #3
      ALL inline 4's have a buzzy zone - albiet your is a bit lower than most.
      i beleive it's usually in the 5-7k rpm zone.

      tim

      Comment


      • #4
        mine is 6K RPM. That just so happens to equate to a little over 70 in 6th for me, which makes the highway very uncomfortable. By 7K, it's gone, but that's a little TOO super-legal.
        Any and all statements by Loudnlow7484 are merely his own opinions, and not necessarily the opinion of Katriders.com. Anything suggested by him is to be followed at your own risk, and may result in serious injury or death. Responses from this member have previously been attributed to all of the following: depression, insomnia, nausea, suicidal tendencies, and panic. Please consult a mental health professional before reading any post by Loudnlow7484.

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        • #5
          When I ran my bike on the dyno there were massive dips around 3-4k and 6500-7000k where it was going super lean. After a little adjustment the vibration mostly went away in those spots but it is still there a little. I also got new grips and filled my bars with lead and now the vibration is almost nill.

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          • #6
            Originally posted by trinc
            ALL inline 4's have a buzzy zone - albiet your is a bit lower than most.
            i beleive it's usually in the 5-7k rpm zone.

            tim
            5-7k which puts mine right in the power band range at speed.
            TDA Racing/Motorsports
            1982 Honda CB750 Nighthawk, 1978 Suzuki GS750 1986 Honda CBR600 Hurricane; 1978 Suzuki GS1100E; 1982 Honda CB750F supersport, 1993 Suzuki Katana GSX750FP. 1981 Suzuki GS1100E (heavily Modified) http://katriders.com/vb/showthread.php?t=94258
            Who knows what is next?
            Builder of the KOTM Mreedohio september winning chrome project. I consider this one to be one of my bikes also!
            Please look at this build! http://katriders.com/vb/showthread.php?t=91192

            Comment


            • #7
              mines are at 5-7k too
              I should do the lead stuff too.

              G.
              WittyMonkey
              ----------------------------------
              www.bostontechnologies.com

              Comment


              • #8
                Originally posted by wittymonkey
                mines are at 5-7k too
                I should do the lead stuff too.

                G.
                a good motorcycle glove helps also, make sure the palm is padded.
                TDA Racing/Motorsports
                1982 Honda CB750 Nighthawk, 1978 Suzuki GS750 1986 Honda CBR600 Hurricane; 1978 Suzuki GS1100E; 1982 Honda CB750F supersport, 1993 Suzuki Katana GSX750FP. 1981 Suzuki GS1100E (heavily Modified) http://katriders.com/vb/showthread.php?t=94258
                Who knows what is next?
                Builder of the KOTM Mreedohio september winning chrome project. I consider this one to be one of my bikes also!
                Please look at this build! http://katriders.com/vb/showthread.php?t=91192

                Comment


                • #9
                  That's odd.. only place mine does that is a very narrow band ca 4.5-5.25K rpm. By the time i get to 6K it's a really smooth and comfy ride
                  -= Har du styr på lortet, eller lort på styret? =-

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                  • #10
                    I already ordered new gloves monday (yesterday) they should be here before my ride to Nova Scotia.
                    Here is what I got :
                    http://cgi.ebay.com/ws/eBayISAPI.dll...MEWN%3AIT&rd=1
                    I don't think they are that good but at least they are red , which match my new jacket

                    G.
                    WittyMonkey
                    ----------------------------------
                    www.bostontechnologies.com

                    Comment


                    • #11
                      It did not start until the bike was jetted.Would the viberation be from to rich or lean? I think it is running to rich but the mixture is set to 2 turns out. When it came back from the shop it was set at 1 1/2. The bike ran very poor and had no power. I took the carbs off and set the mixture to 2 turns out.It halls but now the viberation is driving me crazy. Im about to go trade it in.
                      Can the mixture be adjusted with the carbs on the bike?

                      Comment


                      • #12
                        could be either one. or even the needle height.
                        TDA Racing/Motorsports
                        1982 Honda CB750 Nighthawk, 1978 Suzuki GS750 1986 Honda CBR600 Hurricane; 1978 Suzuki GS1100E; 1982 Honda CB750F supersport, 1993 Suzuki Katana GSX750FP. 1981 Suzuki GS1100E (heavily Modified) http://katriders.com/vb/showthread.php?t=94258
                        Who knows what is next?
                        Builder of the KOTM Mreedohio september winning chrome project. I consider this one to be one of my bikes also!
                        Please look at this build! http://katriders.com/vb/showthread.php?t=91192

                        Comment

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