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  1. 4Stroke Midbikes
    http://pages.ebay.com/motors/link/?nav=item.view&id=141791570486&alt=web They make "1.45 psi" or 10000pa. Want more scientific data than opinion.
  2. New to PocketBikePlanet? Introduce Yourself!
    ive been wondering what if on a 2 stroke u put excess pressure relief valve like in a hydraulic system in the bottom half of the cylinder and ported the piston so the bottom half of the intake so the bottom half of the intake was always open. this would fix the pulsating problems created by the...
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