Ad Widget

Collapse

Announcement

Collapse
No announcement yet.
This topic is closed.
X
X

need soome help with consumption

Collapse
  • Page of 5
  • Filter
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 4 5 template Next
  • #1

    need soome help with consumption

    ok i ride 98 600 kat, bought it with 30.000km, runs good, a bit uneven idle when warmed up, sometime 1k sometimes 1,2k rpm.. id say related to carb sync. but she is fuelcoholic! 7L of fuel per 100km!
    im into carbs a bit, but my mechanic (friend) told me everything changes when 4cyl comes, i had 1c supermoto did my carbs alone, had GS500 2c did my carbs alone, now i dont think of doing it.
    so i asked few mechanics what could it be- i got answers like cold weather, no longer fumes but drops of fuel entering cyl (its -2C currently), its suposed to "drink" that much (friends 750kat- town 5,3-5,5 and open roads 5L) so thats not it. went to another mechanic yesterday he told me maybe your carb needles are in 3rd position (when black top open on carbs, thats the needle he was talking about), and it should be on 2nd, it could get you 1L less..

    my friend mechanic wants to clean carbs ultrasonic then to set them up, but i think its just the setting, but i could be wrong

    ok, any other ideas? ill acept 6L but 7 im NOT (mind that in Serbia we pay 1,38 Euros per 1L of fuel )
    tnx in advance for your help
    Last edited by FJCharlie; 11-19-2011, 08:46 AM.
    sigpic
    Tags: None
  • #2
    Your friend who wants to clean the carbs is probably right. It's at least the right place to start, followed by careful adjustment to make sure everything is adjusted carefully.

    Take this to him: http://katriders.com/wiki/images/8/8f/Carbs102a.pdf
    Wherever you go... There you are!

    17 Inch Wheel Conversion
    HID Projector Retrofit

    Comment

    • #3
      Originally posted by Wild-Bill View Post
      Your friend who wants to clean the carbs is probably right. It's at least the right place to start, followed by careful adjustment to make sure everything is adjusted carefully.

      Take this to him: http://katriders.com/wiki/images/8/8f/Carbs102a.pdf

      thanks for PDF file, but, this guy is 20y of expirience with motocycles if i show this to him id get punched in face
      also not recomended full carburator dismantle because of later enlighment od the bodies, seems like a hell of a work..somebody told me that once..
      anyways, looks like its gonna get cleaned then set up. ill keep you posted with our progress.

      in the meantime whats your consumtion? in liters preferably
      sigpic

      Comment

      • #4
        Remove the gas tank. With it "off" put the fuel line back on the petcock and set it to prime for about 30 seconds or 1 min. Turn off prime, remove the fuel line, set the tank to the side, blow on the fuel line.

        If your able to move air through the fuel line at this point then you have at least one float needle not sealing off properly. This would dump fuel into your engine at a higher rate as fuel is being forced through the carbs by the gravity fed pressure of the fuel tank, instead of being drawn into the engine by the air pressures.

        It's a simple lets, but can point towards one specific issue to look for when cleaning the carbs.

        Krey
        93 750 Kat



        Modified Swingarm, 5.5 GSXR Rear with 180/55 and 520 Chain, 750 to 600 Tail conversion, more to come. Long Term Project build thread http://katriders.com/vb/showthread.php?t=96736

        "I've done this a thousand times before. What could possibly go wron.... Ooops!"

        Comment

        • #5
          Originally posted by FJCharlie View Post
          thanks for PDF file, but, this guy is 20y of expirience with motocycles if i show this to him id get punched in face
          also not recomended full carburator dismantle because of later enlighment od the bodies, seems like a hell of a work..somebody told me that once..
          anyways, looks like its gonna get cleaned then set up. ill keep you posted with our progress.

          in the meantime whats your consumtion? in liters preferably
          Just a heads up, you really should have him fully dismantle them and dip them. Otherwise they aren't really being cleaned as there are small passages that canned carb cleaner just won't get to well enough.

          If he's been doing this for 20 years, taking them all apart shouldn't be an issue.

          I get 45-50 MPG....have to convert that. Converts to 4.7L/100 KM

          7 L/KM is about 35 MPG, which isn't terrible. I suspect you may have some carb icing issues as well with temps that cold. Does your Kat have carb heaters?

          Comment

          • #6
            with my riding style, my katana burns up to 8-9litres,never under 7 litres/100km.how do others manage to only burn 5 litres?

            Comment

            • #7
              Originally posted by 05RedKat600 View Post
              ...Does your Kat have carb heaters?
              Carb heaters? WTF, this isn't an airplane!
              Wherever you go... There you are!

              17 Inch Wheel Conversion
              HID Projector Retrofit

              Comment

              • #8
                Originally posted by Wild-Bill View Post
                Carb heaters? WTF, this isn't an airplane!
                European Kats, some of them, have a carb heat system. No joke.

                Comment

                • #9
                  not having carb heaters, first time i heard about that on motocycle. maybe some russian bikes that are being used on -40C
                  7L is bad cause im not going over 6k rpm, what if i do? itll lounch to 10L
                  ill go for small things like those needles position and synch, if doesnt help ill go for full clean.
                  im avoiding it because i dont have a car and taking a bus isnt an option untill snow, so curently its -4C and im riding! untill i see snow im not getting off
                  sigpic

                  Comment

                  • #10
                    A bike engine's not like a car. 6k rpm is about where you're going to get your best fuel economy.
                    Wherever you go... There you are!

                    17 Inch Wheel Conversion
                    HID Projector Retrofit

                    Comment

                    • #11
                      this morning i went to mechanic (friend one) we removed the black caps of carburetors and inspected the needles, they were in 3rd position and we repositioned them onto 2nd position.
                      NOT AN IMAGE OF GSXF CARB, i think its Honda needle
                      gsxf has 4 positions of needle. so now ill check my fuel consumption, engine is working more even on idle now, but it has some trouble pulling around 3k rpm, after 3,5k rpm it runs like hell
                      will keep you posted
                      sigpic

                      Comment

                      • #12
                        no change in consumption, i rode straight 100km it ate 7.2-7.3L
                        monday morning is my service day, so complete cleaning of carbs, needles, and adjustment.
                        if this doesnt help im really gonna flip
                        sigpic

                        Comment

                        • #13
                          First off, is this a 750 or a 600? I wasn't entirely clear on that.

                          Secondly, my 750 gets 6.8L/100km under normal riding conditons with a mix of city and highway driving. If riding all highway I'm getting closer to high 5 to low 6 per 100km.

                          My needles are not adjustable as I am in Canada and there are silly rules here. I've synched the carbs once since I've owned the bike, but my carbs haven't been cleaned in over 40,000km. Fuel consumption has never changed over that distance.
                          My current rides: (see my garage for a complete history of my bikes)






                          sigpic

                          Comment

                          • #14
                            Originally posted by FJCharlie View Post
                            i ride 98 600 kat, with 30.000km
                            i dont rev, i dont do fast acceleration, i drove outside town (open road=no trafic, trafic lights etc) and i got 7.3L/100kms
                            sigpic

                            Comment

                            • #15
                              Originally posted by FJCharlie View Post
                              i dont rev, i dont do fast acceleration, i drove outside town (open road=no trafic, trafic lights etc) and i got 7.3L/100kms

                              Thanks for the clarification... I don't know how I missed that.

                              Consumption is high for a 600. As other members have suggested, a complete carb teardown, cleaning, and rebuild with new components may be in order to help the fuel consumption. Of course professional tuning after the rebuild will be instrumental as well.
                              My current rides: (see my garage for a complete history of my bikes)






                              sigpic

                              Comment

                              Previous 1 2 3 4 5 template Next
                              Working...
                              X