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exhaust ?

Discussion in 'Motorcycle Tech Talk' started by smuffin, Jun 6, 2004.

  1. smuffin

    smuffin New Member

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    if i alter the exhaust by drilling out the baffles as a friend suggested will i have to rejet the carb. or adjust the mixture. his dyna was drilled and his bike sounds pretty good, not to loud just nice low rumble.
    smuffin, Jun 6, 2004
    #1
  3. BluesCruiser

    BluesCruiser New Member

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    Like most things in life, it depends. The air breather and pipe restriction levels determine how much air you can move through the system. If you drill the pipes a bit but leave the intake restricted then you can only move a bit more air and you might not need to re-jet. If you also lower the intake restriction you will probably get into re-jetting. Just my $.02
    BluesCruiser, Jun 17, 2004
    #2
  4. Seahag

    Seahag New Member

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    You should probably atleast drill out the plug over your idle mixture (slow speed) jet...so you could richen the mixture up a tad...that might be enough without having to actually change jet sizes.
    Seahag, Jun 17, 2004
    #3

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