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K&N Air Filter and Performance of my bike Pulsar 150

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  • K&N Air Filter and Performance of my bike Pulsar 150

    Hey guys,
    Actually i am in bit problem with my bike, so need some help and guidance from you expert people.
    My bike is was tuned properly with K&N air filter in 2009 in Indore, then i shifted to new delhi an last month i got K&N air filter cleaner set and cleaned it.
    And also removed the cover of Air filter box, so that filter can get much air .... but now bike goes upto 5000-5500 rpm quickly and then gets stuck, than i have to shift to next gear or if I am in top gear i have to leave the throttle.
    I showed it at castrol pit stop but he is clueless about it and i don't know any mechanic who tunes K&N air filters in new delhi.
    So guys please help in this matter.

  • #2
    Topic Approved.

    From the way I see it, the problem could be any of the below:

    1. Delhi's dusty environment. Yes, dust can even penetrate K&N filters, specially if the airbox is removed. Most K&N products are designed keeping in mind the USA's environment and USA's products. And all of them are recommended to be used with Airboxes only, not without them.
    OR
    2. Maybe the extra airflow (after removing airbox) is too much for the bike and it is running lean to a heavy extent. Which means it could require a bigger carb main jet.
    OR
    3. The cleaning technique could have been wrong, thus damaging the filter itself. For example, K&N's should not be cleaned with pressurized water/ air, as it will be damaged instantly and has to be disposed off then.


    BUT, to pinpoint the exact problem among the above 3 points, the information you provided is just not enough.

    Which K&N filter model exactly are you talking about? When you tuned it in Indore, did you get the carburetor's main jet changed? Was its AFR tuned well by the mechanic? And how did you clean the K&N exactly?

    Do one more test: Start the bike and let it idle without throttle in neutral. Do you see the rpm/ tacho needle going up and down automatically?
    ---
    Brotherhood, Rules, Freedom. Xbhp.
    Indian riding = Alertness, Anticipation and Adjustment.

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    • #3
      Help Needed Installing K&N BA2210 Air Filter and NGK Irridium Spark in Pulsar 150

      Hi,
      I own a Pulsar 150 UG4 Model of 2010 and I have done 12000Km with it. I want to install NGK iridium and K&N BA-2210 Air filter in my bike. But from some sources I heard that installing K&N may ruin my bike. Is it true? Need suggestion guys....

      Comment


      • #4
        Originally posted by dearanik View Post
        Hi,
        I own a Pulsar 150 UG4 Model of 2010 and I have done 12000Km with it. I want to install NGK iridium and K&N BA-2210 Air filter in my bike. But from some sources I heard that installing K&N may ruin my bike. Is it true? Need suggestion guys....
        Query Approved and merged with similar topic
        Biking is not about what you have between your legs, its all about how well you use it!!!!!!!

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        • #5
          Originally posted by Samarth 619 View Post
          Topic Approved.

          From the way I see it, the problem could be any of the below:

          1. Delhi's dusty environment. Yes, dust can even penetrate K&N filters, specially if the airbox is removed. Most K&N products are designed keeping in mind the USA's environment and USA's products. And all of them are recommended to be used with Airboxes only, not without them.
          OR
          2. Maybe the extra airflow (after removing airbox) is too much for the bike and it is running lean to a heavy extent. Which means it could require a bigger carb main jet.
          OR
          3. The cleaning technique could have been wrong, thus damaging the filter itself. For example, K&N's should not be cleaned with pressurized water/ air, as it will be damaged instantly and has to be disposed off then.


          BUT, to pinpoint the exact problem among the above 3 points, the information you provided is just not enough.

          Which K&N filter model exactly are you talking about? When you tuned it in Indore, did you get the carburetor's main jet changed? Was its AFR tuned well by the mechanic? And how did you clean the K&N exactly?

          Do one more test: Start the bike and let it idle without throttle in neutral. Do you see the rpm/ tacho needle going up and down automatically?
          Agree to all points. Additionally, TS may get his carb checked. Maybe the slide gets stuck. Moreover, its not clear if he has put in bigger jets. And removing the box was a bad idea!

          Originally posted by dearanik View Post
          Hi,
          I own a Pulsar 150 UG4 Model of 2010 and I have done 12000Km with it. I want to install NGK iridium and K&N BA-2210 Air filter in my bike. But from some sources I heard that installing K&N may ruin my bike. Is it true? Need suggestion guys....
          Stock is best. Stay stock, have peace of mind. There are no performance gains with K&N or any after-market filters on our puny < 250cc mills. At max you may experience a slight change in the torque curve, but that requires immense troubleshooting and DIY.
          Got a $5 head? Get a $5 helmet.
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