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  1. #1

    Default FZ1 front fork rattle

    Hello all,

    So I have always been a silent stalker on the site reading posts and finally decided to register now that I have a question for ya'll. Purchased a '09 FZ1 left over last December and enjoyed it greatly last year. After taking it out this weekend, I noticed a rattle coming from up front at low speeds over bumps. I noticed it while idling through the parking lot. Thought it was the windscreen or something else with the plastics, but when I got home I shook the bike and think the sound is coming from the front forks. Anyone have an issue with this before and any suggestions on what to do to check (before taking it to the dealer). Warrantee just ended...of course...

  2. #2
    Moderator FZ1 front fork rattle Oldschool's Avatar
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    Default

    Check to be sure it isn't just front brake pads or other related parts first.
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  3. #3

    Default

    What old school said, it's probably your front brake pads...


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  4. #4

    Default

    I've still heard the noise when applying the front brakes. My thoughts is that would eliminate this as a possible issue?

  5. #5

    Default

    I would check the steering stem bolt. It will rattle and you will feel it through the handle bars when applying the breaks

    "I got home I shook the bike and think the sound is coming from the front forks."

    Put it on the center stand have someone hold down on the rear of the bike lifting the front wheel off the ground and grab both forks and see if there is any forward or backward movement in them. I will try and see if I can find a diagram explaining this.
    Last edited by CorrectionsK9; 03-21-2012 at 07:28 AM.

  6. #6

    Default

    When I first got my secondhand FZ1 2008 [ 19,000klms] I notice this also,I tried lightly applying the brakes,checked wheels, head bearings,forks etc,didn`t seem to make much difference.I screwed the preload down on the front to the next mark which seemed to help,now I never seem to notice it much, I think if I went really slow over a bumpy surface I most likely would hear it.But as my bike`s suspension seems to suit my weight [78kgs] and the bike handles great, I now don`t worry about it anymore

  7. #7

    Default

    I have heard of this issue before. If you ruled out the brake pads, which many times it winds up being, I know that sometimes it's the fork spring inside the tube hitting the wall of the tube itself. It has happened on first gen bikes and can be remedied by rotating the fork spring inside the tube 180 degrees. Have your fork seals or oil been changed or replaced lately? Just a thought.
    Billy
    2009 FZ1 Cobalt Blue, Dynojet PCV, Ivan's ECU Flash, Two Brother's V.A.L.E. Carbon Fiber Slip-on, Dirt Road Custom Seat, M-Factory Shorty Levers, Frame Sliders, Swingarm Spools, BBS Gold Colored Wheels, GYTR Braided Lines, Philips Extreme Vision H4 Bulbs



  8. #8

    Default

    I heard the same noise today on mine. I've got a 2007 fz1 with 1,800 miles on it. The front end is all stock. I retorqued everything on the front end and nothing made it go away. I also had just set the suspension to stock settings so I plan to adjust that and see if anything helps. If nothing can be found loose I won't worry about it.

  9. #9

    Default

    I fixed the rattle by taking the forks apart, cleaning the tubes and replacing the oil with the correct amount of 7 wt oil. The rattle drove me nuts... I tried all of the remedies on this thread but the thing that worked was having the right amount of oil in the forks. I used 7 wt oil to see if it would reduce the nose dive the bike did during hard braking... it seems to have worked.

  10. #10

    Default

    How many miles has your bike??? I know that here in europe people change the oil in the forks after 30.000 km.......along with seals ect.....however this depends of how the bike was driven also....
    Yamaha FZ1 '08, Yoshimura TRC full system, Large Airbox Mode, K&N filter, Ivan's sub throttle plates, Ivan's FCE, Factory pro Velocity Stacks, SS HEL brake Lines, NISSIN 19x21 master cylinder, LSL X01 carbon Handlebar and risers, Metzeler M7RR,flashed ECU = 163 HP at the wheel

 

 

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