Front End "Shudders"
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Thread: Front End "Shudders"

  1. #1
    Sixgill
    Guest

    Front End "Shudders"

    Hi guys,

    So i went for my morning ride, 6 am is a good time for me to build up some skills without worrying about too many others on the road.

    As i was heading home i took both hands off the bars, in less than 1 second the handelbars started to "shudder", i quickly regained control and continued on.

    My questions:
    Is the "shudder" a normal occurance ?
    If it isnt what should i be directing the mechanic to look at ?

    The bike is going into the shop tomorow for a complete service, inculding valve adjustment and carb tuneup.

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  3. #2
    Registered User Array J1k's Avatar
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    Jan 2003
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    chilliwack
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    crf250r
    sounds like a headshake.tell them at the shop,maybe time for a tire,head bearings who knows but make sure you let the shop know.

  4. #3
    doug
    Guest
    and, maybe a steering damper. if you can fit one.

  5. #4
    Jackie Chan's stuntdouble Array Motorcycle Man's Avatar
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    Feb 2002
    Location
    Victoria
    Bike
    CBR600 F4
    A steering damper would just cover up the problem. Like J1k says, get the problem fixed.

  6. #5
    builder of bikes Array cosworth's Avatar
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    Apr 2002
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    The Island
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    bah
    Tire balance can be off drastically. There is a reason the weights on my wheels are on the centerline. Either way, take it to a competent mechanic. This is something that could be a repeat visit at $$$$ for them to find.

    Next step, don't take your hands off the bars.

  7. #6
    dazed
    Guest
    damper wont cover it unless its totally cranked

  8. #7
    Sixgill
    Guest
    Thanks guys, as i stated its going into the shop tomorrow.
    At least now i have some directions to point them in.

    My hands are on the handle bars 95% of the time, the other 5% are for streching itching and signals.

  9. #8
    Registered Abuser Array kuldip's Avatar
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    Apr 2004
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    here
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    ...
    head bearing?

  10. #9
    treefinder
    Guest
    You definately don't want to experience that in full shake... It could hurt you and your bike.. My old 87 gsxr 1100 got it bad after a shop resprung my forks/ It scared me 3 times then i tore it apart and sold it in pieces before it killed me.

  11. #10
    Moderator Array TeeTee's Avatar
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    Feb 2002
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    Out to pasture in the 'Wack
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    04 Kawi Z1000,
    Sometimes it's also bad tires as well. Depends on the bike but it is definetly worth having it checked out by a reputable mechanic.

    PS: if the bike belonged to someone that tried to lighten the handling by raising the rear or lowering the front then they may have gone too far and made it unstable.

    All of which goes to show that it could be due to any number of possible causes or a few of them together.
    A backyard mechanic without a service manual is just like a hooker without a lamp pole.... they are both in the dark.

  12. #11
    luv my r6 Array ninjarider77's Avatar
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    Mar 2004
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    BC
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    04 R6
    i have had this happen twice(when i got new tires) try a re-balance
    Dirtymike
    online motormouth

  13. #12
    Ridin hard n dirty Array Mr.Sushi ya ha's Avatar
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    May 2005
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    3rd rock from the sun. po co.
    Bike
    bunch "o" bikes
    Q. Do you have weights in your handle bar ends? did you remove them? if they were suppose to be there and they aint put them back....other wise your fork springs are starting to sag thus changing your fork ride height....bike probably feels like it flops in the corners too when your not on the gas....if you have preload adjustment wind it in two lines if not try 3-4 clicks of compression...lastly slide the forks down into the tripple clamps 1/8 of an inch..this is all assuming the bearings are propperly adjusted.
    if you don't know what i am telling you get a friend or take it to a shop with a mechanic who races and knows how to set up suspension...Troy at carter should know....Jeff at Pacific...

  14. #13
    Ridin hard n dirty Array Mr.Sushi ya ha's Avatar
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    May 2005
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    3rd rock from the sun. po co.
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    bunch "o" bikes
    Oh ya...tire pressure....and old tires can do it too....get a good gauge ! set it to the owners manual recomondation..

  15. #14
    oscarthegrouch
    Guest
    Seems like I just wrote this one up for someone......

    Start with the really simple shit, ie check your tires. Don't get fixated on the front tire. Some of the worst front end shudders can come from rear tires that are past their best before date. Avoid any bolt on fixes at first unless they consist of new tires or new balance weights (if yours have flung off somewhere along the way). Good luck...you shold be able to take your hands off without it going nuts. Unless its an older K100 BMW, then you are out of luck

  16. #15
    Registered User Array janesee's Avatar
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    Jul 2003
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    Victoria
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    2009 Kawi ZX6R
    one of my instructors told me that if you're coasting hands-free and in too low of a gear, your front end can also shudder as a result of you being in too low a gear, and the inertia/momentum of the bike isn't being carried on. if you're in a higher gear or neutral when you cruise with no hands, this shouldn't happen, becuase there's nothing trying to slow down the bike without you balancing it. i've tested it and its true, but then again, i'm a girl... what do i know
    Good friends will bail you out of jail, BEST friends are the ones sitting in the cell next to you saying, "Dude that was fucking awesome!"

    1996 Kawasaki Ninja EX500
    2005 Yamaha R6
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    2009 Kawasaki ZX6R Monster Energy Edition

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