Author Constant knocking  (Read 21812 times)

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  • Offline Yorkie   england

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    Offline Yorkie

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    • Bike: Cbf1000a9
    • Country: england
    Constant knocking
    on: 24 September, 2023, 04:32:41 pm
    24 September, 2023, 04:32:41 pm
    Hi everyone new to this just bought a cbf1000 a9 09reg it's done 14000 miles very clean bike the only problem is every bump or hole in the road I can feel a knocking through the bars I've checked the obvious stuff everything is right and tight I was just wondering if anyone else has had this issue cheers
    Paul

  • Offline Art   england

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    Offline Art

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    Re: Constant knocking
    Reply #1 on: 25 September, 2023, 10:17:12 am
    25 September, 2023, 10:17:12 am
    That'll probably be either the front suspension or the steering head bearings, easy enough to check as per Section 4 of the workshop manual which, if you’re allowed spanners and you haven't already, you may want to download the Honda Workshop and Owners Manuals here. If the front suspension and steering head bearings seem fine check the torque of the stem adjusting nut Section 14 of the workshop manual should be of interest here, HOWEVER, there is no need to remove the fairings or the front forks.

    How I did it was to displace what is needed to remove the handlebar, stem nut and top yoke (the bottom yoke pinch bolts will hold the forks in place). You can then remove the stem lock nut and lock washer to torque the stem adjusting nut, you'll need a suitable C spanner, I got this one off eBay . It can be difficult to maintain the correct torque of the adjusting nut when tightening the lock nut which can result in the adjusting nut being over tightened and locking up or stiffening the steering. An assistant is needed to hold the adjusting nut with a C spanner while the lock nut is tightened against the lock washer, using a drift and hammer to lightly tap the lock nut to align with the lock washer tabs, it took me two attempts to get this correct.


  • Offline Yorkie   england

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    Offline Yorkie

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    Re: Constant knocking
    Reply #2 on: 26 September, 2023, 09:31:10 pm
    26 September, 2023, 09:31:10 pm
    Thanks for the reply art I've sorted it it was slight play in the head bearing my mate at murftec who is the Yoda of everything bikes spotted it after a thorough1 hour check of everything

  • Offline Art   england

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    Offline Art

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    Re: Constant knocking
    Reply #3 on: 19 October, 2023, 01:31:36 pm
    19 October, 2023, 01:31:36 pm
    ... whoops duplicate post
    Last Edit: 19 October, 2023, 01:32:59 pm by Art