2018 1200 Bonavil Speedmaster Gearbox

Discussion in 'Technical Help' started by Max Holt, Oct 8, 2019.

  1. Max Holt

    Max Holt Fat Max

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    Since new last October, my Speedmaster gears have been an issue. Firstly second and third, up and down made a distinctive loud clunk. It went back to Triumph to be sorted and cane out clunking first, second, and third, up and down. It went in again, this time they said it was the clutch, and they had treated the plates with a soak overnight in oil and readjusted it. This did make a small difference, but now it clunks really bad into first from neutral, and still clunking between first, second, and third up and down.
    Has anyone had the same issue or similar and know what the issue is?
     
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  2. dilligaf

    dilligaf Guest

    :confused: My gearbox is fine:)
     
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  3. Bad Billy

    Bad Billy Baddest Member

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    Yeah but what about the Speedmasters gearbox! :po_O:joy:
     
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  4. David Gilding

    David Gilding Member

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    Have heard about some possible gear box issues on Stuart Fillingham s YouTube channel, he is collecting info I think ! Mine is OK at the moment.
     
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  5. Michael O

    Michael O Member

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    Yes, I get a clunk/click going up to third gear, thought it was my inexperience on a big bike.
    All other gears are fine.
     
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  6. Max Holt

    Max Holt Fat Max

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    Triumph has a good feedback facility through most of there main dealers.
     
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  7. Wessa

    Wessa Cruising

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    Agreed, ask your dealer for the triumph warranty department contact details...
     
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  8. Dartplayer

    Dartplayer Crème de la Crème

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    13000km and still smooth. I find first can clunk if I move off again quickly after stopping, like after leaving it running in the driveway to open the garage door.
    Always smooth in the morning and clean on each gear up and down.
    Hope they sorts yours @Max Holt
     
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  9. Jacknzone

    Jacknzone Well-Known Member

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    I said about this issue to dealership when I took the bike back for it's first service , they test rode the bike and said it works ok and ask how I use the clutch lever ,the problem was I was pulling in the clutch lever fully in to the handle grip through the upshifting , they said to only pull it in half way and it seem to work the other thing they was to use only two finger to pull the clutch lever in but third gear still clunk if I shift to quickly .
    Cheers
     
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  10. Calvin Ellis

    Calvin Ellis Member

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    Have the clunky gear box on mine too..first and second usually okay but third and fourth are loud...Just thought it was me..
     
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  11. Max Holt

    Max Holt Fat Max

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    Personally, I think this is a lame solution to the problem. There is an obvious issue with these gearboxes and Triumph Motorcycles are probably waiting for a major fail before they commit to fixing it.
     
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  12. Traveller

    Traveller Active Member

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    My thoughts. I notice the "clunk" if I try to shift to early. Seems to be better if I wind it out a bit more right before the shift. Like Jackzone said, the clutch does not need to be pulled all the way back to the grip when changing. I also adjusted my clutch lever in (toward the grip) a little more and it seems to help.

    There is an issue but not bad enough to worry about. My last bike "clunked" for years and was never a problem.
     
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  13. Jacknzone

    Jacknzone Well-Known Member

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    Yes you maybe be right but the guy who told me about the finger trick , has had a lot of Triumph over years so this has been around for some time and the two finger on the handle grips does work for me and when I pull the clutch lever in fully I still get a clunk in third some time second gear , you could say it's adds a bit of character to the bike which has abundance of character cheers
     
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  14. capt

    capt Elite Member

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    Pulling the clutch lever fully to the handle bar grip , is compressing the clutch springs too much. This leaves no space for any movement originating from the gearbox as the gears are trying to mesh - hence the clunk , many gearbox problems reported by owners are operator related and not a fault with the machine.
     
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  15. Callumity

    Callumity Elite Member

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    I just wonder if driving cars with synchromesh gearboxes makes some riders less careful about matching road and engine speed in a motorcycle constant mesh gearbox? If you ride long enough you maybe forget what has become second nature or have ingrained habits slightly alien to a new bike.

    Without being overly technical (I couldn’t be!) cars have devices (synchromesh) that bring gears to the same speed before meshing them. Bikes differ. You can’t go from 1st to 6th except via the intermediated gears whether you engage drive or not. The dogs that shunt the gears sideways are pretty clunky things to accommodate rough changes. So, provided the clutch is properly adjusted and warp free the clunking MUST arise because of a slightly brutal slap in the mechanism. Because the thing is in constant mesh you need some rotational play between shafts to be able to change gear at all.

    Or so I imagine......
     
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  16. capt

    capt Elite Member

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    Callumity , you are correct .. ! And having no play or movement left in the clutch because it is over extended so to speak , your clunky gear mechanism will be louder and harsher when you change gears when you haven't allowed them much chance to slide into the next gear with maximum freedom.
     
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  17. Max Holt

    Max Holt Fat Max

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    So, does that mean you can use a full handful of fingers to change 1st to 2nd and just 2 fingers 2nd to 3rd then back to full handful 4th, 5th and 6th? It's a motorcycle, not a delicate bit of kit you might find in a ladies handbag. All the gears should work with the same amount of effort. Some 1200 models don't have this problem! Why do others have it? In a nutshell it smacks of poor consistency in the engineering.
     
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  18. Jacknzone

    Jacknzone Well-Known Member

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    All I can say it works for me !!
     
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  19. DJ Burnage

    DJ Burnage New Member

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