My bike is not as powerful as it should

Discussion in 'Mechanics Garage' started by Bahat, Jan 23, 2008.

  1. Bahat

    Bahat New Member

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    I was starting to feel lack of power when I was driving in high gear (5,6)
    I suspected spark plugs, muffler PIAR system or one of the sensors. When I noticed the idle speed go down as wall the muffler was ruled out.
    The PAIR valves where removed and cleaned (they did need cleaning, it looks like it was the first time they where cleaned), but no change in the engine power.
    Disconnecting the cables from the ignition coils one at the time show cylinder #3 to be not working and cylinder #1 was very weak.
    Spark plugs where black indicating inefficient burn. Spark plugs where replaced, again no change in the engine power.
    It was time for extreme action.
    Air box was removed.
    The throttle body was removed and the injectors where removed from it.

    [​IMG]

    I build an home made injector tester/cleaner:

    [​IMG]

    The hose was field with gasoline and connected to an air compressor.
    The compressor pressure was set to ~36 PSI and I gave several 12V long pulse to the #3 injector.
    It was clear like the advertisings for the gasoline additives (the before picture). Clearly this injector was not working properly.
    Then the pressure was set to 90 PSI and I gave several long pulses until the injector was spraying properly.
    The rest of the injectors passed the 36 PSI test but I gave them the 90 PSI treatment just incases.
    This process took 6 hours now the bike runs grate.

    Need to do:
    Adjust the idle speed.
    Fix oil leak in the fork.
     
    Last edited: Jan 23, 2008


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  2. Bahat

    Bahat New Member

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    I can't upload the images

    :mad: I have images 100k 290x219 pixels, keep telling me invalid image
     


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  3. reg71

    reg71 Poser Staff Member

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    looking at your post it seems you are trying to point vfrworld to your local computer. the pics have to be sent to somewhere on the internet first. you can upload them in the photos section or to any service like photobucket. once they are on the internet, then you click the photo icon in the message and it says 'please enter the url of your picture' then type 'http://www.example.com/myphoto.jpg' where www.example.com is the service, and myphoto.jpg is the photo you want us to see. If you need more help, PM me and I'll help you out...
     


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  4. Bahat

    Bahat New Member

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