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Check your nuts!

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  • March 6, 2011 at 9:49 pm #99634

    glenn
    Member

    Seeing that I was unable to attend Micks birthday ride at wauchoppy, I thought I would try and get out locally for a blat.
    A few of us went to the play ground around nundle for a short 100k loop.
    Any way this isnt a ride report but more of a heads up to go and feel your nuts.

    On this ride where a few new blokes (all on Katos) 2x 525, 1x 450 brand spanker.
    We got to a technical hill and this is where all hell broke loose, turns out old mates maintainance is kick the tyre and load her up. (this is the brand new 450 i`m talking about. Anyway i have come up to theis log across the trail on the up hill in the slippery red clay, yous all know the style of terrain, So I styles the predator over log (typical boony style) and looks to me right and heres 2 katos cuddling just on the other side of the log,turns out the 450 was first and when he fired it over the log there was a large clink and a clank sound and then one of the 525s ran straight up his arse, these bikes were knotted together hard.

    it soon became apparent what happened, Old mate (450) should have checked his sprocket bolts,
    the only remaining bolt actualy held as it tore his hub to pieces and snapped the sprocket in half.
    Sproc.jpg

    sprockets.jpg

    oops this one isnt about the sprocket its just Buzz helping snowy relieve some tensions :woohoo:
    snowy.jpg

    March 6, 2011 at 9:53 pm #197795

    Dan Bateman
    Member

    Cable ties would fix that… :laugh: :laugh: :laugh:

    March 6, 2011 at 9:55 pm #197800

    glenn
    Member

    Ummm I dont fink so!!!!! :whistle:

    March 6, 2011 at 10:12 pm #197801

    alan
    Member

    yep still got a couple :P if its brand new waranty you would think spose maybe ktm warranty maybe not(not real good predelivery i just do the nuts up realy tight and some lock tight no need to touch it untill its warn out)

    March 6, 2011 at 10:17 pm #197802

    Alan Heather
    Member

    No yooz guyz have got it all wrong, thats the new 2 piece ktm sprocket’s:woohoo: :woohoo: :laugh: :laugh: :laugh:

    March 6, 2011 at 10:22 pm #197804

    glenn
    Member

    3 piece Al!!!! the bit old mate is holding part of the hub,,,it was ugly, and not to mention about 25ks fro the cars, :( :angry: :( :( :pinch:

    March 6, 2011 at 10:55 pm #197796

    Alex
    Member

    Bit strange for a new one. I’ll tell you what might of happened there: the original nuts on KTMs are squashed oval nuts (to save money as nylocks would make the bikes $17k on the road). Old mate must of changed the gearing and used the same nuts again – ooops. Best use new bolts and nuts or at least nuts. Sounds like new hub time as the flogged out holes will never keep the nuts from coming loose over again.

    March 6, 2011 at 11:15 pm #197805

    glenn
    Member

    the hub was trashed,, it disinigrated, the holes in the sprocket were elongated, the srpocket had 52, KTM printed on it,,not sure if it was stock, apparently the bike had only 1000ks on it.

    March 6, 2011 at 11:51 pm #197807

    Greg
    Member

    The dealer or the owner would have changed the gearing. I have seen the ADR fitted sprockets at Sutto’s that they change when doing a pre delivery they are heaps smaller than 52. That said if the dealer did change the sprocket and its done 1000kms its hardly their fault cause if you are doing 100km rides thats 10 rides. Maintenance is the the answer to prevent something like that,like said new nuts, tight, locite or even another thought could be that too tight a chain pulling on the sprocket and bolts, its a KTM thing cracked hubs for too tight a chain.
    You can see the fretting marks on the back of the sprocket in the 2nd picture ;)

    Bad luck :(

    TB

    March 7, 2011 at 12:02 am #197809

    alan
    Member

    you sound like a dealer TB passing the buck if the bolts come loose in a thousand klms means someone stuffed up fitting the sproket to me simple .or a crap product.do the bolts come loose in your bikes in a 1000klms i dout it

    March 7, 2011 at 12:14 am #197810

    Greg
    Member
    white rocket wrote:
    you sound like a dealer TB passing the buck if the bolts come loose in a thousand klms means someone stuffed up fitting the sproket to me simple .or a crap product.do the bolts come loose in your bikes in a 1000klms i dout it

    No not at all Rocket, but think off it like this. Lets say he has done 8 x 125km rides if they are hard singles like Boony the single riding legend rides up there they could be around 6 to 8hrs each. So for the argument lets say 7 hrs each, times that 7hrs by the 8 rides thats 56hrs riding give or take. So 56hrs or 1000kms as Boony said my question is when does the dealers responsibility stop and the owners responsibility start? 50 plus hours is a few hours riding, its actually almost 2 A4DEs and your would check your sprocket bolts during 2 4days wouldnt you?

    Again bad luck I reckon

    TB

    March 7, 2011 at 12:21 am #197812

    alan
    Member

    so do your nuts come loose TB :sick: every 1000 :silly:

    March 7, 2011 at 12:40 am #197797

    Adam Rodgers
    Member

    I think understanding your bike and what it sounds like is very important ;)

    Pauly’s bike (a KTM, I see a trend :laugh: ) developed a noise on Mick’s Birthday ride and it drove him (and me) mad trying to work out what it was :unsure:

    The point is he knew his bike, and knew when it didn’t sound right. My problem was I was following him for a while and thought the noise was from my bike and was trying to work out where the hell it was coming from :blush: :whistle:

    Anyway it was his chain asking for some oil :(

    I would hope I would notice a sprocket flogging the hub to death well before catastrophic failure occured B)

    A good look over when washing and lubricating doesn’t go astray either, missing bolts or shiny areas around bolts need investigating ;)

    Adam.

    March 7, 2011 at 1:05 am #197813

    Greg
    Member
    white rocket wrote:
    so do your nuts come loose TB :sick: every 1000 :silly:

    Sorry Rocket I missed that question :silly: , yes and no is my answer :blink: . I have had them come loose in under a 1000kms when fitted with new bolts and locite day 2 of the 2006 A4DE actually, Yellow Mountain 2007 but not completely loose but the first stages but found them because I checked them. And no they dont normally come loose but I do always check them thats why I havent destroyed a hub either which has been my point all along :)

    Cheap bolts have given me dramas before as they stretched :ohmy:

    TB

    March 7, 2011 at 9:39 am #197798

    Craig Hatton
    Member

    Check mine after every ride after washing. Have never found them to be loose but have found plenty of other bolts missing or loose, par for the course I reckon. Loctite is your friend- hell I even carry some in the sparse tool kit I carry when riding.:P :laugh:

    Sorry WR but I think the bloke should have checked his bike over-1000kms is along way on a dirt bike on terrain which is very unforgiving. I know people who have got 1000kms on their bike and it is 2 years old, surely thats not still a warranty issue if it happened to them.

    Hatto

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