Author Valve clearances wear  (Read 7646 times)

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  • Offline keithriley   gb

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      #20

    Offline keithriley

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    Re: Valve clearances wear
    Reply #20 on: 22 January, 2023, 09:49:46 pm
    22 January, 2023, 09:49:46 pm
    Congratulations on a job well done 👏 Every days a school day, I hope you learned new skills along the way.

  • Online Art   england

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    Online Art

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    Re: Valve clearances wear
    Reply #21 on: 23 January, 2023, 09:52:46 am
    23 January, 2023, 09:52:46 am
    Happy days

  • Offline Davy   ie

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    Offline Davy

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    Re: Valve clearances wear
    Reply #22 on: 06 February, 2023, 01:15:09 pm
    06 February, 2023, 01:15:09 pm
    Post doing the valve clearances, l now have an intermittent problem. The bike starts on the botton and idles at 1300 rpm. It then randomly blips to about 1400 and instantly drops back to 1300. Also at lower speeds you notice a stutter under acceleration. I took the bike for a good run and the issue went away for a few days, but it's back again this morning, starting halfway through my morning commute. Any ideas? Is the timing slightly out or have l upset something else?

  • Offline keithriley   gb

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      #23

    Offline keithriley

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    Re: Valve clearances wear
    Reply #23 on: 06 February, 2023, 01:51:55 pm
    06 February, 2023, 01:51:55 pm
    If itís starting on the button Iíd say itís hardly likely to be timing related, thatís either good or bad. With the bike being injected thereís a plethora of sensors feeding in to the ecu, go through all, especially those you have recently had apart, looking for any not fully connected or locked in. Same goes for the HT leads

  • Online Art   england

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    Online Art

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    Re: Valve clearances wear
    Reply #24 on: 06 February, 2023, 01:56:20 pm
    06 February, 2023, 01:56:20 pm
    It won't be the valve timing out because you checked that before buttoning it all up, didn't you? Besides if the valve timing is out, even by one tooth of the timing chain, it wouldn't start'.

    How many miles has it done and what have you touched since the 22nd January valve clearance adjustment?

    Recheck everything you displaced under the tank to get the camshaft cover off, I'd be looking for a vacuum leak.

    Did you replace the spark plugs and with what specification plug?
    Last Edit: 06 February, 2023, 02:21:42 pm by Art

  • Offline Snave1000   gb

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    • #25

    Offline Snave1000

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    Re: Valve clearances wear
    Reply #25 on: 06 February, 2023, 02:04:41 pm
    06 February, 2023, 02:04:41 pm
    Iím sure on here thereís been a few posts on problems with plug caps after disturbed for maintenance, specifically no3. Iíd check that out bef anything else

  • Online Art   england

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    Re: Valve clearances wear
    Reply #26 on: 06 February, 2023, 02:15:47 pm
    06 February, 2023, 02:15:47 pm
    LOL

    The old No3 spark plug cap myth. It just doesn't happen, at least not to folk allowed spanners.

  • Offline Snave1000   gb

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    Offline Snave1000

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    Re: Valve clearances wear
    Reply #27 on: 06 February, 2023, 02:42:32 pm
    06 February, 2023, 02:42:32 pm
    Mine was very tight and itís pretty bad access, I could see how it might get damaged wrangling it off .. secret is gently I guess

  • Online Art   england

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    Online Art

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    Re: Valve clearances wear
    Reply #28 on: 06 February, 2023, 04:01:41 pm
    06 February, 2023, 04:01:41 pm
    If you remove the crankcase vent, displace the thermostat and coil packs then remove the pair control valve and its plumbing access is fine and its a simple job to pull the caps. Its all about making room, if you try cutting corners and don't make room it could all end in tears.

    If there is a secret it can be found in a can of maintenance spray (Triple QX, GT85 or if you must the reassuringly expensive WD40) lift the boot flange and using the supplied straw direct the spray down the sides of the spark plug wells, leave to penetrate then ease the caps from the spark plug wells by means of a rotary twisting motion, a quarter turn clockwise and a quarter turn anti-clockwise as you pull and they'll pull out easily.

    Top tip - When re-fitting the spark plug caps give the outside a goodly smear of red rubber grease to keep them free.