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Thread: Two-Strokes/Porting/Emissions : Your feedback pls!

  1. #1
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    Default Two-Strokes/Porting/Emissions : Your feedback pls!

    Hi all,

    There has been umpteen discussions on how emissions are affected by porting two-strokes. I have heard too many times that two-strokes for all the fun factor, are not very clean bikes. I wanted to share my experience and invite yours.

    Here is my story. I bought a second hand RX135 5-speed. After a thorough service and decarb, I took an emissions reading with the cat-con hot (11 KM ride). I think i did not leave any loop-holes. It came up with 1.11% CO.

    After porting, the cat-con was no longer usable because it did not flow well. I went in for chambers (RDD porting, so RDD custom chambers). This time the setup was nowhere near perfect yet. The carburetion was imperfect. The engine was running rich (running in). I have mild piston slap (This is a super-street setup and cant be completely warmed up by normal riding) With all this, WITHOUT a cat-con she now reads a 0.85% CO.

    The secret I know is the digital CDI (Yeah, the same ole' RDDreams Digital CDI everybody is talking about) and I have emission certificates to prove this but i dont have access to a scanner to attach them here yet. I hope SKSy_Biker can help me with this.

    I dunno how this compares to others. I want to know how the experience has been for the other members on this forum. Please post your feedback.

    I would really appreciate it if the feedback is as detailed as your knowledge permits. Please do mention ported / non-ported, CO readings before and after, what type of exhaust you have, cat-con non-cat-con or chambers. If they are chambers and you know the source(KRP, local mech etc), please include that detail.

    Thanks in advance,
    Ajith

    P.S. : Rajazz, i earnestly hope this makes you feel a little less bad about me polluting mother earth's atmosphere with my stupid stroker. I wish I had a choice of a bike which gives me the kicks without paying a penalty on the pollution front, but I think I have done the best I can do within my reach.
    <font color=\"purple\">- Learning to fly (low).</font id=\"purple\">
    <font color=\"purple\">- \"With great power comes great responsibility\" - Ben Parker (From the movie Spiderman)</font id=\"purple\">

  2. #2
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    Wish i could ride your bike buddy....so its less polluting and more fast now eh?
    LIVE LIFE FULL THROTTLE!!!!!! VROOOOOOM!!!!

  3. #3
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    quote:Originally posted by prodigy350

    maybe since ur bike is newly serviced.. it's giving a very low emmissions, wait for few months and see how ur bike becomes a smoker... especially if u rip it like a maniac... i had a similar experience with my RX
    You are unbelievable and I got only one question for you. Do you even read before you post??
    -Ajith
    <font color=\"purple\">- Learning to fly (low).</font id=\"purple\">
    <font color=\"purple\">- \"With great power comes great responsibility\" - Ben Parker (From the movie Spiderman)</font id=\"purple\">

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    ha ha LOL really that was actually funny......a real funny answer to a very technical post...
    LIVE LIFE FULL THROTTLE!!!!!! VROOOOOOM!!!!

  5. #5
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    Thats very good as one of my friend bought Enfiled Thunder Bird last year and that time he is facing problem in getting PUC for it even after having 4 stroke engine. I also faced a lot of problem in getting PUC for my RD in Mumbai and thats why i sent her to my native place before shifting to Bangalore.May be ill get her here after July as the pollution rules are not that much strict in Bangalore.
    My first and last passion 1979 Legendry Honda CBX,as sound+looks is not power.
    sound+power=looks.
    http://www.members.shaw.ca/cbx4evr/pix/cbxpipes.jpg

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    33 views and not one person can tell me what their emissions readings were like. . No stroker friends here?
    -Ajith
    <font color=\"purple\">- Learning to fly (low).</font id=\"purple\">
    <font color=\"purple\">- \"With great power comes great responsibility\" - Ben Parker (From the movie Spiderman)</font id=\"purple\">

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    quote:Originally posted by ajith

    33 views and not one person can tell me what their emissions readings were like. . No stroker friends here?
    -Ajith
    Hey,
    There are quite a few strokers here like urself, but i dont think anybody ever bothered to check their emissons..........if u would have asked abt top speed & accl.......u would have got replies with figs...........but the kind of question ur concerned with does not invite...........

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    Hmm. Dont you atleast know your current values?
    <font color=\"purple\">- Learning to fly (low).</font id=\"purple\">
    <font color=\"purple\">- \"With great power comes great responsibility\" - Ben Parker (From the movie Spiderman)</font id=\"purple\">

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    my sincere apologies to all strokers... u r right ajith.. i didn't bother to completely read the post, i am sorry...

  10. #10
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    Dont think people have a clue about this yet.
    Freeird-- Experience is what you get when you don\'t get what you want.

    www.flickr.com/maniya

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