compression test ktm 300 2001

Discussion in '2 smokers' started by ssregal39, May 24, 2012.

  1. ssregal39

    ssregal39 Been here awhile

    Joined:
    Jan 24, 2008
    Oddometer:
    222
    Location:
    Norfolk VA
    i have forgoten have many times to kick a 2 stroke for compression test.
    anyway, on a cold motor, i kicked 6 good times and got 175. seems ok to me.
    what do the other 2 smokers think?:norton
    #1
  2. Reino

    Reino Been here awhile

    Joined:
    Nov 21, 2011
    Oddometer:
    275
    Location:
    namibia
    I am assuming that is psi, but according to my limited knowledge base i would say that is reasonable.:deal



    A 300 should get around 200 - 210 psi on a fresh top end. Minimum acceptable compression is generally about 150 psi.
    http://www.dirtbikeworld.net/forum/archive/index.php/t-40434.html (12th post from top)

    proper pressure after 5 kicks should be in the 175-190 psi range on fresh top end for that bike.
    http://answers.yahoo.com/question/index?qid=20070920062714AAfJjoe

    A 300 will run with 120 but not well. Start saving for a top end. If you let it go too long you will need to replate the cylinder.
    http://boardreader.com/thread/05_300_exc_compression_d89Xl3gb.html

    what model is your bike? (sx, xc, xc-w or an exc)

    And remember Google is your friend.:D
    #2
  3. ssregal39

    ssregal39 Been here awhile

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    Norfolk VA
    thanks. it's an exc. the motor should be fine for a while i think.
    now i just need to sort the jetting.
    #3
  4. Reino

    Reino Been here awhile

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    Nov 21, 2011
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    275
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    namibia
    Same here on the jetting, good luck with the bike i hope you get every thing sorted. :D
    #4
  5. w33b8t1

    w33b8t1 Been here awhile

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    Aztec, NM
    Oops responded to the wrong thread.
    #5