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Thread: My bike doesn’t like going right!

  1. #17
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    Had a quick look at the front end , when front brake applied there is a slight knock when I rock forward and back ( possible play in ball joint ) ??
    Anyway, one ordered, will update when it’s replaced


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  2. #18
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    Sounds like you may have found the problem. There any many things that could cause the issue you describe, and fwiw I think you are right to trust your instinct on whether or not there is something to sort ouy. You need to eliminate the easiest possible causes followed by the most likely, and do it methodically until the problem goes away.

    There is probably a thread on there about replacing the ball joint. Needs heat to release the factory threadlock and torque is about 200nm from memory.

  3. #19
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    Quote Originally Posted by Slipperyeel View Post
    Has the FD been off? Also sounds like symptoms of the UJs not aligned?

    Sent from my SM-N910F using Tapatalk
    What is this talk of U-joints being aligned ?

    The U joint is attached to the driveshaft, not the final drive. Please elaborate. Thanks

  4. #20
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    Quote Originally Posted by ferguscawley View Post
    What is this talk of U-joints being aligned ?

    The U joint is attached to the driveshaft, not the final drive. Please elaborate. Thanks
    Take a look at the OEM parts drawings with exploded views. It will become clearer...

    Sent from my SM-N910F using Tapatalk

  5. #21
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    Quote Originally Posted by Northern Monkey View Post
    Had a quick look at the front end , when front brake applied there is a slight knock when I rock forward and back ( possible play in ball joint ) ??
    Anyway, one ordered, will update when it’s replaced


    Sent from my iPhone using Tapatalk
    Interesting! Curious that it would cause a bias. But keep us posted!

    Sent from my SM-N910F using Tapatalk

  6. #22
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    OK

    I looked at the parts fiche.

    How can the u-joints not be aligned. They are part of the driveshaft.

    Sorry if I'm being stupid but I don't see how they can be 'not-aligned'
    Attached Images Attached Images   

  7. #23
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    Quote Originally Posted by Slipperyeel View Post
    Take a look at the OEM parts drawings with exploded views. It will become clearer...

    Sent from my SM-N910F using Tapatalk
    I stand corrected. I think. Just looking at the OEM exploded parts views. It would appear both UJs are all part of one shaft assembly.

    I'm much more familiar with the 1150. Despite swinging down the FD on my 1200, I thought the UJ would pull out from the shaft as per the 1150. But maybe not? Meaning no possibility of misalignment?

    Can someone confirm?


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  8. #24
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    Quote Originally Posted by Slipperyeel View Post
    I stand corrected. I think. Just looking at the OEM exploded parts views. It would appear both UJs are all part of one shaft assembly.

    I'm much more familiar with the 1150. Despite swinging down the FD on my 1200, I thought the UJ would pull out from the shaft as per the 1150. But maybe not? Meaning no possibility of misalignment?

    Can someone confirm?


    Sent from my SM-N910F using Tapatalk
    yep - on the 1200s they are a solid(ish) construction. The inner and outer shafts are joined via a locking rubber gasket

    Can't speak for the 1150s.

  9. #25
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    Quote Originally Posted by ferguscawley View Post
    ....

    The inner and outer shafts are joined via a locking rubber gasket
    Not sure it's a 'gasket'. More like a vulcanised rubber joint running the full length of the join. That part is the same as the 1150



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  10. #26
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    That's what I meant to say. My brain is too tired to find the words this evening

  11. #27
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    Quote Originally Posted by ferguscawley View Post
    That's what I meant to say. My brain is too tired to find the words this evening
    Not only yours


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  12. #28
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    Quote Originally Posted by Slipperyeel View Post
    Not sure it's a 'gasket'. More like a vulcanised rubber joint running the full length of the join. That part is the same as the 1150
    The cush drive is shown in cross section in a post of mine last year. Don't remember which thread. I cut through it to see the construction after I replaced my drive shaft

  13. #29
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    When I had my front subframe powder coated I took the chance to replace the top yoke steering bearing. It made a considerable difference to the steering accuracy so don't rule it out.
    08 R1200GSA
    76 Suzuki GT750

  14. #30
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    Quote Originally Posted by Northern Monkey View Post
    Had a quick look at the front end , when front brake applied there is a slight knock when I rock forward and back ....
    That is probably the brake pads knocking in the brake caliper bodies as the disk moves them back and forth.
    ADAM

  15. #31
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    Quote Originally Posted by Pukmeister View Post
    That is probably the brake pads knocking in the brake caliper bodies as the disk moves them back and forth.
    Ah. This sounds like something I discovered when buying my TC.

    I noticed a slight knock at the front when applying the brakes, then pushing back and forth.

    I quickly discovered it was actually the discs moving to a stop within their fixings, each time you push-pull. I went to a dealer and looked at the new bikes. The discs all did the same. So I bought the TC

    This may or may not be relevant. But worth noting. Easy to check too and get it off the list


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  16. #32
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    Quote Originally Posted by Northern Monkey View Post
    Is it a case of measuring length of the leg from the clamp to the axle??


    Sent from my iPhone using Tapatalk
    Sorry for the shit slow response. No, what happened on mine was I hit something solid off roading and the forks twisted in the bottom yolk clamps rather than moving up. That led to the bike preferring one turn over the other. If I remember correctly you can tell by placing something flat and wide, piece of glass was suggested at the time, across the fork stanchions. If the legs are twisted in the yolk then it won't sit flatly against the stanchions but will rock. If I can find the original thread I'll check a link up.

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