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Thread: PPC clutch system

  1. #1
    Baby Twin
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    Feb 2012
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    PPC clutch system

    Hi how air proof or airtight is the throttle valve in the system, on my bike I am able to pressing air through with throttle close, and can't tell any difference if it is close or open

    Is the valve in bypass valve broken ?

  2. #2
    AMA Pit Boss redratbike's Avatar
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    Take the valve off and you should be able to blow through it one way ...if it's both ways it's broke

    Cheap item to replace

  3. #3
    Baby Twin
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    I Think you misunderstood, or I didn't explain it good enough it is the throttle valveimage.jpeg
    Last edited by Pumbaadk; August 2nd, 2016 at 01:47 PM.

  4. #4
    AMA Pit Boss redratbike's Avatar
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    yep still don't understand what you mean?

    so are you saying engine off pulling the clutch in you can here air coming through the throttle bodies? if so that's corrects..

    .when you back off the throttle the vacuum sucks the air from the clutch pulling the diaphragm allowing clutch plates to slip slightly stopping the back wheel from locking on downshifts/over revving engine due to difference in road speed/engine speed

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