Author Topic: Fuel injection problem  (Read 2006 times)

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  • Offline Sande e Castro

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    Offline Sande e Castro

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    Fuel injection problem
    on: Mar 29, 2018, 02.25 am
    Mar 29, 2018, 02.25 am
    Hi, I just joined this Forum. I'm traveling around the world with my CT. Left Portugal in 2012 and have been traveling four months every year since. The bike had 9000 km when I left and now has 120.000. I'm struggling for some time with what I guess is a fuel pump problem or catalyst problem and wanted to know if anyone else had a similar problem. The engine, some time ago, wouldn't rev over 4.000 and lately it doesn't go over 3.000. I've already asked for a fuel pump to be sent to me to Brasil where I'm now but would like to know other opinions. I've made a computer test at a Honda dealer and all the sensors and electrics are fine. Thanks

  • Offline fotodadi

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    Offline fotodadi

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    Re: Fuel injection problem
    Reply #1 on: Mar 29, 2018, 03.21 am
    Mar 29, 2018, 03.21 am
    Hi!

    Awesome trip you are on....enjoy!

    We run a motorcycle workshop in Nigeria and from the description you have given, it does seem fuel related.

    What we usually see in the workshop is the strainer ahead of the fuel pump getting clogged and restricting fuel flow. If you plan to change the pump, make sure to change the stainer too.

    Another "test" you could do to confirm "fuel starvation" is as follows: with engine at running temperature and in neutral, engage WOT as fast as possible. If the engine bogs down or even goes off, fuel starvation is confirmed.

    All the best and stay safe!
    In My Garage
    2017 Honda VFR1200X Highlander
    2015 BMW K1600GTL Exclusive (written off)
    www.fdfoundation.org
    https://www.instagram.com/fotodadi/

  • Offline Fredz   au

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    Offline Fredz

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    Re: Fuel injection problem
    Reply #2 on: Mar 29, 2018, 03.36 am
    Mar 29, 2018, 03.36 am
    The new fuel pump comes with the in-tank filter and suction strainer.  A blocked suction strainer is a fairly common cause of the problem on Kawasaki & Suzuki FI bikes that I'm familiar with.  It can be purchased separately from Kaw & Suzi (same part), don't know if the same part fits the VFR.

    https://bluecitymotorcycles.com.au/oem/honda/search-parts?brand=honda&year=2012&model=4506&assembly=62656



    Kaw p/n 49019-0013

    Suzuki p/n 15420-05H00
    Last Edit: Mar 29, 2018, 03.46 am by Fredz

  • Offline Sande e Castro

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    Offline Sande e Castro

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    Re: Fuel injection problem
    Reply #3 on: Mar 29, 2018, 12.40 pm
    Mar 29, 2018, 12.40 pm
    Thank you both. I've changed that filter and actually it was very dirty but the problem persists. Probably the fuel pump was damaged by using very poor petrol in countries like Iran and Central America. I thought it could be a blocked catalytic converter as well. You don't think that could be the problem?
    By the way, I might go through Nigeria next October or November
    Cheers

  • Offline Fredz   au

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    Offline Fredz

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    Re: Fuel injection problem
    Reply #4 on: Mar 29, 2018, 12.59 pm
    Mar 29, 2018, 12.59 pm
    If the new FP doesn't fix it then you will have to look deeper.  Anything's possible, it just a (not) simple matter of finding it - sorry.   :006:

  • Offline fotodadi

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    Offline fotodadi

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    Re: Fuel injection problem
    Reply #5 on: Mar 29, 2018, 02.14 pm
    Mar 29, 2018, 02.14 pm
    *Originally Posted by Sande e Castro [+]
    Thank you both. I've changed that filter and actually it was very dirty but the problem persists. Probably the fuel pump was damaged by using very poor petrol in countries like Iran and Central America. I thought it could be a blocked catalytic converter as well. You don't think that could be the problem?
    By the way, I might go through Nigeria next October or November
    Cheers
    I wouldn't go with the bad catalyst just yet. Did you try the WOT procedure? A bad catalyst will usually allow you rev the engine to the redline without load but won't with load!

    I stay in Lagos and it would be nice to see or help if you need any!
    In My Garage
    2017 Honda VFR1200X Highlander
    2015 BMW K1600GTL Exclusive (written off)
    www.fdfoundation.org
    https://www.instagram.com/fotodadi/

  • Offline pistnbroke   england

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    Offline pistnbroke

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    Re: Fuel injection problem
    Reply #6 on: Apr 02, 2018, 09.43 pm
    Apr 02, 2018, 09.43 pm
    Could it also be down to bad fuel you may be using from time to time.
    Does it happen all the time.
    keep it shiny side up !!!

  • Offline GADGET

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    Offline GADGET

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    Re: Fuel injection problem
    Reply #7 on: Apr 03, 2018, 07.02 am
    Apr 03, 2018, 07.02 am
    Looks like crap fuel to me, pre- filter has done its job, until clogged up!.

     



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