Injectors, clean or replace

Discussion in 'Introduce Yourself !!' started by Gcarleton, Feb 23, 2020.

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  1. Gcarleton

    Gcarleton .020 Over

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    Hello all.
    I am the proud owner of an 05 r3 with only 10k on it, I just bought it from the 2nd owner who let it sit for over a year without riding it.Needless to say the fuel was junk and she wouldn't start.
    The road so far:
    1 drain the tank fill with sacrificial fuel drain, replace the spark plugs again still no go
    2 pull fuel rail drain all varnish
    3 fill tank with 101 oct still won't run cough's and sputters but no run
    4 a few drops of fuel in the air box and she wants to run but won't.
    Here's where i ask for your opinion.
    IMO its a fuel delivery problem, the question injectors or something else?
    Should I bite the bullet and order new injectors or attemptto pull and clean the ones that are in there?
     
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  2. 1K9

    1K9 Big Cruisers 4 Me

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    Could be just a clogged fuel filter or pick up mesh. A broken down fuel line in the tank has been reported and featured here. I think it was Steel who wrote that up. Blow some air through the pump while you are at it. It's a female dog to change but easier that dealing with the injectors.
     
    Last edited: Feb 23, 2020
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  3. Kevin frazier

    Kevin frazier Widow maker Nashvegas

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    For 90 bucks you can have cleaned and tested at rcinjectors, 1 day turn around, also fuel filter in tank is probably jacked up as stated above,
     

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  4. Gcarleton

    Gcarleton .020 Over

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    Good call, it dawned on me after I posted thatI hadn’t even checked the output of the fuel pump, I will give it a test when I get back home. thanks for the input.
    BTW does this bike use O2sensors? I don’t see any in the pipes.
     
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  5. Steel

    Steel Resident Coonass

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    Stock it did. It could have been removed by the previous owner.
     
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  6. Gcarleton

    Gcarleton .020 Over

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    The previous owner did say the person he bought it from had done a cat delete, but with fuel injection I don't know why you would pull the O2 sensors unless the fuel injection doesn't rely on them for its maping.
     
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  7. Gcarleton

    Gcarleton .020 Over

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    Well the bad news is that I pulled the fuel ling off the rail looks like it makes about 6lbs of pressure for about 5 second when key goes on and looks clean and a good flow, I'm guessing it only does a short run until engine starts?
    Wondering if anyone has pulled injectors without pulling carbs? I was able to pull fuel rail while leaving carbs in place but the manual says to pull carbs :(
     
  8. 1K9

    1K9 Big Cruisers 4 Me

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    I don't know how to answer that question. I see no reason for that design feature but I'm sure someone in the know will chime about that. I just can't see all three injectors becoming clogged at the same time. If it has pressure while on start up sequence if should start.
     
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  9. Steel

    Steel Resident Coonass

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    Lots of the tunes are set with the O2 sensor off. Removing them is possible but not necessary .
     
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  10. FE_rex

    FE_rex Bob Wills is still the King

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    6 lbf/in^2 - is that blinded before the regulator?
    Not experienced with Rockets, but with a Harley V-rod or BMWK1300 / R1100, if you only have 6 psi blinded, it's not going to run. On the Harley/BMW you would need 25-30+ and hold it after the fuel pump shuts off.

    Maybe someone with Rocket experience will chime in. While you are waiting - hunt down any post by user IDK and download a manual from the link in his signature
     
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