A good read

Discussion in 'Motorized Bicycle General Discussion' started by breno, Dec 29, 2011.

  1. breno

    breno New Member

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    Hi all,

    Not sure if this has been posted before as it doesnt directly relate to our china donks but there is definatley some good reading here especially around the cyl. head and porting section.. check it out and tell me what you think but be prepared to do alot of reading, you might learn something. :)

    Two Stroke Proformance Tuning
     
  2. inked1974

    inked1974 Member

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    would sure love to download that somehow! any suggestions?
     
  3. KCvale

    KCvale Well-Known Member

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  4. 2door

    2door Moderator
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    There's something hinky about that link. It locked up my computer twice.

    Let me know if anyone else has problems with it. Might just be my 'puter.

    Tom
     
  5. Bicycle Motor Fun

    Bicycle Motor Fun New Member

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    No problem here 2Door on reading the book on your link. It is interesting to me on page 10 of the book, that shows the sparkplug all the way in its threads in the head. My China Doll has about 3/4" of thread in the head and my NGK sparkplug has about 1/2" of thread! Interesting, eh? BMF
     
  6. breno

    breno New Member

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    After reading this im almost game to attack another cyl. after the last one I ruined guestimating..lol

    Do you guys think that removing all the meat in the bottom end for the transfers to port match the jug to the base then widening the transfers would give the bike a lower crankcase pressure resulting in going backwards for the performance scheme of things?
     
  7. thepolarpandabear

    thepolarpandabear New Member

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    You can download with scribid, its a good site.
     
  8. Allen_Wrench

    Allen_Wrench Resident Mad Scientist

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    This is a good read. I'm likin' this. Thanks much.
     
  9. moonerdizzle

    moonerdizzle New Member

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    Big thumbs up from me. Thanks for the link.
     
  10. maintenancenazi

    maintenancenazi New Member

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    Thanks for posting that here, lots of good info about tuning. Judging by the engines, and bikes they are discussing "modifying". I'm going to guess that guide came out in the late 70s to early 80s ?

    Peace, James
     

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