Author Problem when engine warm  (Read 1960 times)

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  • Offline Neiltl1   wales

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    Offline Neiltl1

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    • Bike: Honda CBF1000
    • City / Town: Holywell, Flints
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    Problem when engine warm
    on: 08 July, 2022, 12:40:37 pm
    08 July, 2022, 12:40:37 pm
    when warm, engine fires on 3 then 2 then cuts out. once stopped starts fine then 10mins latter repeats problem..

  • Offline Art   england

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    Offline Art

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    Re: Problem when engine warm
    Reply #1 on: 08 July, 2022, 02:05:54 pm
    08 July, 2022, 02:05:54 pm
     :405:
    I'd expect a four cylinder engine miss firing or failing to fire on two cylinders to stall (stop cranking/idling) so would focus on the miss fire. The year, mileage and which two cylinders are miss firing or failing to fire may be a clue. If I was a gambling man I'd wager on a failed coil pack and that one of the coil's windings has become separated resulting in a loss of connection and spark when the coil pack gets hot. Further hands on diagnosis would be needed to prove the fault before the willy nilly replacement of any parts because the fault could also be caused by the likes of a failed Engine Control Module, spark plugs, HT leads, or HT lead connections.

    Where to start? The CBF1000 has two coil packs, one for cylinders #1 and #4, the other for cylinders #2 and #3. Establish which two cylinders are miss firing, if for example its cylinders #1 and #4 (or #2 and #3) then swap the coil packs over and check if the miss fire swaps over with the coil packs, if it does you've proven the fault.

    If you’re allowed spanners and you haven't already, you may want to download the Honda Workshop and Owners Manuals here.

  • Offline Neiltl1   wales

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    Offline Neiltl1

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    Re: Problem when engine warm
    Reply #2 on: 08 July, 2022, 03:19:37 pm
    08 July, 2022, 03:19:37 pm
    Thanks for the speedy reply, will let you know how I get on.
    Bike is an 06, with 26500 on the clock