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Thread: Is there any links to "do it yourself" mild 2 stroke cylinder porting?

  1. #1
    Join Date
    Jun 2008
    Location
    NE Indiana
    --
    1,067

    Is there any links to "do it yourself" mild 2 stroke cylinder porting?

    I have an extra cylinder and i thought I'd try my hand and practice a bit but I am wondering if there any "how to" articles or videos to show how to properly do it.

  2. #2
    Join Date
    Nov 2006
    Location
    southern oregon
    --
    2,338
    There is alot of info out there on porting.. read everything you can on the subject before grinding on your jug..

  3. #3
    Join Date
    Mar 2005
    Location
    overton, PA
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    5,257
    you can always take of fmorematerial but its hard to ut it back on!
    ok here goes, 85 atc70,2 84 atc70's 83 alt50,83 atc110 , 70 us 90 parot green, 85/86 350x garage queen, stock rider 85 350x, project 85 350x 85 250r drag bike, 2 85 250sx's, alt185, , scat tracker?99blaster,85 250r rider,85 250r ice racer project ,93 kx500,99 xr200r, 91 dr250s ,89 lt500 quadzilla,88 lt250quadracer, 88 trx250r race full on race quad,, 01 yamahakodiak400, kawaki kd100,lt50 for my doughters,93 300ex, 230 quadsport, lt185, lt250 quadrunner,84200s, is that enough?

  4. #4
    Join Date
    Nov 2006
    Location
    southern oregon
    --
    2,338
    the Gordon Jenings or A. Graham Bell books are old but have good info on basic 2-stroke theorys. I wouldnt alter any ports until you have a full understanding of why you are doing it.. Small changes have noticable affects. Its easy to make more HP.. but its also easy to make the bike hard to ride and actually slower than before if the powerband gets too narrow. It takes special tools to get at the transfers and the exhaust is only part of a port job..

  5. #5
    Join Date
    Jun 2008
    Location
    NE Indiana
    --
    1,067
    OK, thanks for the info guys. I was just pondering trying a little with an extra jug I happen to have to see if I could do it or not.

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