Fuel injection
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Thread: Fuel injection

  1. #1
    Been riding since 1985 Array philtag6000's Avatar
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    Nov 2002
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    Burnaby
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    Fuel injection

    Bikes with fuel injection, does it stay under pressure after
    the engine is off? Or is there a relieve valve?
    History of bikes:

    (1) '85 Honda Elite 150cc
    (2) '84 Honda Interceptor 500cc
    (3) '89 Kawasaki Ninja 600cc
    (4) '89 Honda Hurricane 600cc
    (5) '00 Kawasaki Ninja 250cc
    (6) '02 Honda CBR600F4i
    (7) '04 Suzuki Burgman 400cc

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  3. #2
    Registered User Array J1k's Avatar
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    Jan 2003
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    chilliwack
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    crf250r
    It holds pressure,but whe you undo a hose or whatever it holds so much less fuel than a car that its basically like openin a can of pop maybe a tad more.

    john

  4. #3
    Moderator Array TeeTee's Avatar
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    04 Kawi Z1000,
    John may not have been that clear. To clarify, the fuel in the section of line between the pump and the injectors may still be under pressure but since it's a liquid and liquids are not compressable the pressure is relieved by just sliding the hose off the nipple. Just backing the hose on the nipple increases the volume enough to totally kill any pressure so you won't notice it at all. Bear in mind to that it's only between the pump and the injectors. The line to the tank won't have any pressure in it.
    A backyard mechanic without a service manual is just like a hooker without a lamp pole.... they are both in the dark.

  5. #4
    One more time eh? Array spacely's Avatar
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    Quote Originally Posted by TeeTee
    Bear in mind to that it's only between the pump and the injectors. The line to the tank won't have any pressure in it.
    unless the pump is in the tank, which almost always the case with FI
    WMRC # 31

  6. #5
    Moderator Array TeeTee's Avatar
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    Oh, well OK if you want to get PICKY.! ! ! !

    Actually mine is in the tank of my new bike just like you mention. (still not used to the EFI bits yet) When I took the tank off it didn't leak more than a couple of drops. So there ya go.
    A backyard mechanic without a service manual is just like a hooker without a lamp pole.... they are both in the dark.

  7. #6
    One more time eh? Array spacely's Avatar
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    Quote Originally Posted by TeeTee
    Oh, well OK if you want to get PICKY.! ! ! !

    Actually mine is in the tank of my new bike just like you mention. (still not used to the EFI bits yet) When I took the tank off it didn't leak more than a couple of drops. So there ya go.
    WMRC # 31

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