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p180 ug3 drinking petrol excessively

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  • #1

    p180 ug3 drinking petrol excessively

    hey guyz from past two weeks iam facing this problem...recently i filled 2 litres ..and it ran for only 37 km..what could be the problemm?

    and also i think that air is escaping from rear tyre...i refilled it then again its escaping ,but not excessively ..just a liltle bit..

    i think it could be the problem ..but then a loss of 40km ..that means a lot

    from past few days rpm needle ios fluctuatiing..the normal idling rpm is around 1.5k ...from past few days its flucytuating and it returns to 1k and whhen i rise the throttle it again raises to 1.5....yoday i checked one screw which is present behind the petrol knob..i gently tightened it ..and i got the 1.5k idling ropm on the metre..

    is there any link between the screw( i think its a fuel-air mixture control) and the mileage....??
    -------------------------------
    Without Knowledge, Skill cannot be focused. Without Skill, Strength cannot be brought to bear and without Strength, Knowledge may not be applied. - Alexander the Great's Chief Physician
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  • #2
    Query Approved.
    :)

    Comment

    • #3
      See, when I started getting pathetic mid range performance & low mileage like 27 kmpl on my P180 UG3, I went to the Bajaj mechanic and told him about this.

      He just started the bike & twisted a screw on my P180's carburettor, and immediately the exhaust note changed (without rpm changing). He said that mixture was getting rich & now, its leaner than before ...

      He also added that this screw, can adjust Fuelling only upto the extent of 0.25 to 1.75 units with 1 being normal (don't know what unit is used).

      The bike is performing good, and mileage has returned to around 35-40 kmpl ...

      I suggest you go to Bajaj SC and tell a mechanic there, that you suspect a Rich Mixture. He will take Care of it.
      Last edited by Samarth 619; 06-21-2009, 05:51 PM.
      ---
      Brotherhood, Rules, Freedom. Xbhp.
      Indian riding = Alertness, Anticipation and Adjustment.

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      • #4
        Originally posted by Samarth 619 View Post
        See, when I started getting pathetic mid range performance & low mileage like 27 kmpl on my P180 UG3, I went to the Bajaj mechanic and told him about this.

        He just started the bike & twisted a screw on my P180's carburettor, and immediately the exhaust note changed (without rpm changing). He said that mixture was getting rich & now, its leaner than before ...

        He also added that this screw, can adjust Fuelling only upto the extent of 0.25 to 1.75 units with 1 being normal (don't know what unit is used).

        The bike is performing good, and mileage has returned to around 35-40 kmpl ...

        I suggest you go to Bajaj SC and tell a mechanic there, that you suspect a Rich Mixture. He will take Care of it.
        thx but i turned a screw behind the petrol knob..rpm changed .. what what was that????
        -------------------------------
        Without Knowledge, Skill cannot be focused. Without Skill, Strength cannot be brought to bear and without Strength, Knowledge may not be applied. - Alexander the Great's Chief Physician

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        • #5
          Well if you are talking about the inverted screw with a spring then that was the idling RPM adjustment screw.That screw is used to just set the idling RPM so that the engine wont stall when you close the throttle by releasing the accelerator.The screw keeps the throttle valve from closing completely.The screw supports that semi circular disc to which the accelerator cable is connected.

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          • #6
            Originally posted by pavanchirmade View Post
            Well if you are talking about the inverted screw with a spring then that was the idling RPM adjustment screw.That screw is used to just set the idling RPM so that the engine wont stall when you close the throttle by releasing the accelerator.The screw keeps the throttle valve from closing completely.The screw supports that semi circular disc to which the accelerator cable is connected.
            yes exactly....but when i tightened it a bit...i experienced more pick - up..wassay>>?
            Last edited by ceasar; 06-21-2009, 11:43 PM.
            -------------------------------
            Without Knowledge, Skill cannot be focused. Without Skill, Strength cannot be brought to bear and without Strength, Knowledge may not be applied. - Alexander the Great's Chief Physician

            Comment

            • #7
              Originally posted by ceasar View Post
              yes exactly....but when i tightened it a bit...i experienced more pick - up..wassay>>?
              Yes that's true. When you tighten it, the bike will have a better pick up and hence will consume more fuel. Loosen it a bit and you will get more mileage.

              Comment

              • #8
                Hey,
                I was having the same problem in my Pulsar 150, disastrous mileage and RPM fluctuating.
                This happens because of Volume Screw's mis-adjustment.

                If you think you can fix this problem by yourself then follow the guidelines on tuning a carburetor and I hope you would find better result. Else simply take it to a knowledgeable mechanic and ask him to set the Volume aka Mixture aka Air screw. I strongly suggest you get it fixed from a mechanic as I have spend hours trying to fix my carb but it all failed, but this efficient mechanic got it tuned so well, I'm back on road with 65kmpl.

                Also do not forget to clean your spark plug once you get the Volume screw adjusted correctly. The theory is when more fuel is pushed in the engine because of volume screw, the spark plugs get clogged with more carbon, hence combustion is not at par, cleaning them will make your bike robust and also will increase mileage.

                My understanding is your volume screw is turned towards thicker mixture.

                wbr
                Ayush

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                • #9
                  thx dude...i will get it checked ....but i didn't done any changes to the scre since i got the bike....its stock completely
                  -------------------------------
                  Without Knowledge, Skill cannot be focused. Without Skill, Strength cannot be brought to bear and without Strength, Knowledge may not be applied. - Alexander the Great's Chief Physician

                  Comment

                  • #10
                    @ceasar- put some water on the valve of the rear tyre n see if there's a bubble..if yes, then take ur bike to a puncture walla n he wil replace the valve of the tube and charge 5 rs..also ur bike might be taking in a richer mixture and hence giving bad mileage..pull out the spark plug and see if its tip is blackened..if yes, consult ur bike's manual for the correct turns of the air screw on the carb or take ur bike to the service center and ask them to set the air screw on the carb to that prescribed in the manual..last but not the least, ride ur bike with proper shifting and throttle wringing..
                    If U haven't Seen GOD, U haven't gone fast enough

                    Comment

                    • #11
                      Originally posted by Ayush Singh View Post
                      Hey,
                      I was having the same problem in my Pulsar 150, disastrous mileage and RPM fluctuating.
                      This happens because of Volume Screw's mis-adjustment.

                      If you think you can fix this problem by yourself then follow the guidelines on tuning a carburetor and I hope you would find better result. Else simply take it to a knowledgeable mechanic and ask him to set the Volume aka Mixture aka Air screw. I strongly suggest you get it fixed from a mechanic as I have spend hours trying to fix my carb but it all failed, but this efficient mechanic got it tuned so well, I'm back on road with 65kmpl.

                      Also do not forget to clean your spark plug once you get the Volume screw adjusted correctly. The theory is when more fuel is pushed in the engine because of volume screw, the spark plugs get clogged with more carbon, hence combustion is not at par, cleaning them will make your bike robust and also will increase mileage.

                      My understanding is your volume screw is turned towards thicker mixture.

                      wbr
                      Ayush
                      Your pulsar is giving you 65kmpl on road? How is that possible?

                      Comment

                      • #12
                        Originally posted by moeed View Post
                        Your pulsar is giving you 65kmpl on road? How is that possible?

                        pushing the bike 1 way back home??

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                        • #13
                          Originally posted by Sandymanviper View Post
                          pushing the bike 1 way back home??
                          iam not surprised ....i have seen people riding 150 ug 3 with mileages around 70 how i don't know
                          -------------------------------
                          Without Knowledge, Skill cannot be focused. Without Skill, Strength cannot be brought to bear and without Strength, Knowledge may not be applied. - Alexander the Great's Chief Physician

                          Comment

                          • #14
                            Hey,
                            Now that's not great in making fun. I believe if you don't know a science don't question it. I drive my bike with only one prime objective, to get maximum mileage and save fuel & money.

                            I've Nulon oil additive added regularly with the engine oil and it helps a lot making bike more smooth and gives effective increase in mileage. Further, I maintain a constant speed of around 50-60km/hr, moreover I live in a place where there is less traffic.

                            Besides this I keep the air filter cleaned and ever weekend I clean the spark plugs, I do not spend money changing engine oils after 1000kms, I change them when I feel they have lost viscosity.

                            If you are a good biker, getting 65 ain't at all a big deal.
                            wbr
                            Ayush

                            Comment

                            • #15
                              Originally posted by Ayush Singh View Post
                              Hey,
                              Now that's not great in making fun. I believe if you don't know a science don't question it. I drive my bike with only one prime objective, to get maximum mileage and save fuel & money.

                              I've Nulon oil additive added regularly with the engine oil and it helps a lot making bike more smooth and gives effective increase in mileage. Further, I maintain a constant speed of around 50-60km/hr, moreover I live in a place where there is less traffic.

                              Besides this I keep the air filter cleaned and ever weekend I clean the spark plugs, I do not spend money changing engine oils after 1000kms, I change them when I feel they have lost viscosity.

                              If you are a good biker, getting 65 ain't at all a big deal.
                              wbr
                              Ayush

                              I was just curious bro, that's why I asked that. The max which I could extract out of my Platina was 91kmpl. Do you think it would go more if I follow your method?

                              Comment

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