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Gearing

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  • Gearing

    DISCLAIMER: B4 anyone blows me out of the water on this topic I'm using wheelies as a way to measure bike acceleration (ie. a busa can pull a wheelie by opening up the throtle since it has a lot better acceleration). I don't have any interest in doing them, Not an any way like that 14 yo who wanted to go out and do them, He's got a lot more pedaling on his schwin b4 he gets a motorized one.

    Anyways, after reading some of the posts on gearing, if you are in the range of a +3 on the back and a -1 on the front or maybe leave the front, This will up your acceleration that much (to do a wheelie) by just opening up the throttle? I assume this also drops your gas mileage and jumps your rpm's up at cruising speed so instead of being at about 6000 at 70mph it'd be what? or how much would gas mileage drop? On the other hand, if I were to switch the gear to maybe a -3 on the back it would signifigantly change the acceleration in a negative way but up my gas milage and lower rpm's at cruising speed. Does anyone have some aprox numbers on these like how much each way helps you out depending on what you want to do?

    How easy or tough is this to do? I have a bike that needs a new chain anyways since it's been sitting for a while. I have done everything to my carbs like clean them out and stuffif you want to relate it to dificulty level. What special tools would I need to remove/replace the chain. I'm not at home now but I suppose I could check my manual too.

  • #2
    Please CyberPoet, allow me:

    check this out, may answer a lot of your questions.
    http://www.motorcycleanchor.com/moto...ocketmath.html

    Comment


    • #3
      Of course it is answered in the link but it is actually torque not acceleration as much. The -1f-+3r will give you a higher number gear ratio thus more torque. Yes, you lose gas mileage and HS could answer that, I haven't changed my gears yet.
      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


      • #4
        Originally posted by kiwiman555
        Please CyberPoet, allow me:


        If we ever reach the point where we can't openly discuss riding bikes on acid without even a modicum of civility, then the terrorists have won.

        HORSE BANG!!! ........props to *GP*

        Official coefficient of friction test dummy

        Comment


        • #5
          I did -1 in front and +3 on the back and there not way the front wheel of the Kat (600) will come up by just opening the throttle don't worry about it!

          Comment


          • #6
            Originally posted by RobRoy
            I did -1 in front and +3 on the back and there not way the front wheel of the Kat (600) will come up by just opening the throttle don't worry about it!
            mine is a pre98 750 and it will
            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
              How about changing the chain and sprokets...is that a very tough task or not at all? That site was very helpful in understanding just what I wanted to. Does anyone know what the stock tooth numbers are on the 92 kat 600?

              Comment


              • #8
                Originally posted by RobRoy
                I did -1 in front and +3 on the back and there not way the front wheel of the Kat (600) will come up by just opening the throttle don't worry about it!
                The 750 will, by just a -1. Crank it open to 5-6K, close it down, WHACK IT OPEN and hold on.
                Matt

                If you think you don't need a helmet, you probably don't.

                Comment


                • #9
                  I have too clutch right now with the stock at that engine 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


                  • #10
                    To be fair, I have a Factory Stage 1 jet kit too, but that seemed to show little effect on my butt-dyno, the sprocket was BY FAR the biggest change.
                    Matt

                    If you think you don't need a helmet, you probably don't.

                    Comment


                    • #11
                      sprockets might not be the cheapest but they are the easiest way to get true power out of the engine. all, add safest on the engine also
                      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


                      • #12
                        Ok I use to run a 14/49 combo on my bike. Stock for the pre 98 750 is 15/47. With the 14/49 I was cruising around town at about 7000. It puts the RPM's up there. Yes if you close the throttle and get back in it, the front will come up. I now run a 14/47 set up and it will still do the same. I also got it up in 2nd back acciddent and all I did was roll thr throttle. The pre 98's have more power then the 98+'s. It is just a fact. So if you go up 3 in the rear and donw 1 in the front it will run your RPMs higher and your gas milage will suck. If you stay in the gas all the time your gas milage is going to suck too. I hope I answered your question or at the least confused the crap out of you.
                        www.mopowersports.com

                        Comment


                        • #13
                          HS, I understand how tough is it to change the sprokets and chain? fairly easy?

                          Comment


                          • #14
                            As simple as pulling the rear wheel off.
                            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


                            • #15
                              I got home and looked through the manual, not tough at all. I think I might be doing this next since I need a new chain.

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