Question about 2006 Yamaha CygnusX

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Front end vibration on my Yamaha Cygnus XNXC 125

Front end vibration on my Cygnus xnxc 125 when starting, I can live with it but it is often that bad it has vibrated the mirror and fixings off my bike losing screws is a warning that this needs fixing, any help would be a life saver (maybe literally)

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  • Marty Oldridge
    Marty Oldridge Jul 20, 2017

    Hi and thank you for this fantastic reply, I have researched these (as much as my limited knowledge allows) also similar articles here on site but nothing fits with what i have going on, the vibration has been since I bought the bike in 2013, I bought it brand new and was told that most scooters have this and not to worry but it is more annoying than worrying. I have to go over all the screws nuts n bolts etc every time i end a journey. the vibration also has started to affect the rear to the point my bike kind of shudders and the there's a kick which can be heard and felt which is also embarrassing when people turn to look. the special nuts n bolts and screws were the ones with a rubber part on them and in checking tightness I broke most of them and ridiculously I broke some while removing so I replaced them all with same size metal screws and bolts which afforded me some extra leeway when it came to how tight i made them. tighter than they were my bike felt more stable and the vibration had eased quite a lot but not completely. believing it now to be something loose i have become obsessed but have exhausted every possibility in that area. the rear wheel has lots of play that i am told is needed the front wheel looks and feels fine checked and adjusted slightly the rear suspension but nothing makes any difference now and a few weeks ago the vibration/kick actually loosened my left hand mirror and I noticed 2 screws missing so it is becoming worrying. I am going through the manuals and hoping to find something and thanks again for those. looks like I may need to have it in a garage but with no cash and 2 children it wont be for a while lol :)



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  • Yamaha Master
  • 59,350 Answers

Hi, Martin and the usual suspects are:
1. Wheels and or tires worn or damaged.
2. Engine/transmission/vehicle not aligned properly.
3. Primary chain is badly worn or links too tight as a result of insufficient lubrication or misalignment.
4. Engine to transmission mounting bolts loose.
5. Upper engine mounting bracket loose.
6. Ignition timing incorrect due to a poorly tuned engine.
7. Internal engine problem flywheels have shifted.
8. Broken frame.
9. Stabilizer links worn or loose.
10. Rubber mounts loose or worn.
11. Rear fork pivot shaft nuts loose.
12. Front engine mounting bolts loose.
13. Worn out or broken universal joint on shaft drive models.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Front end slightly vibrates and wobbles while riding
Motorcycle Troubleshooting Guide Four Stroke Cyclepedia
Yamaha XC125 Service Manual
OEM parts for Yamaha
Yamaha Cygnus XC125 Owner Manual

Btw, I’m available to help over the phone in case u need at

Posted on Jul 15, 2017


6 Suggested Answers


6ya staff

  • 2 Answers


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Posted on Jan 02, 2017



  • 91 Answers

SOURCE: front end vibration

sounds like you got the D.W (death wobble)
It is usually caused by either a bad tire,an off balanced, worn bushings, bad tracbar or loose steering components.

Posted on May 12, 2009



  • 114 Answers

SOURCE: front end vibration

Sounds like a separated tire, alignment will NEVER cause a shake. Or you have a very loose front end part or both.

Posted on May 07, 2009


  • 1 Answer

SOURCE: location of and how to get to battery on a yamaha cygnus x 125

Hi there,

The battery is not under the seat - its sits behind the square plastic panel under the handle bars. (If sitting on the bike the battery cover is beneath the ignition switch. Held on with on screw and pops off to reveal the batt box. The batt should have a retaining strap which would need to be removed before batt will come out.

Hope this helps

Posted on Jul 26, 2009

colin butcher

  • 518 Answers

SOURCE: I am not geting a spark on my yamaha cygnus, there

check to see if the magnito has come loose, although you would hear it if it was, maybe the points need replacing

Posted on Jan 02, 2010


  • 49 Answers

SOURCE: my yamaha cygnus x 125 (2004) scooter back fires

The motor might have jumped timing or bad spark plug or both mabe even the float is jammed

Posted on Mar 30, 2014

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IF your front end is jacked and your front tires are spinning you should be able to see the vibrations. Use a stethoscope on your motor and tranny to isolate vibrations while running.

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I highly doubt its your mounts unless they arn't sitting or torqued properly. If your confident they were installed perfectly i'd ignore that possibility.

Also, with front end jacked and car not running wiggle your wheels left/right, and up/down to see if any play. Spin them and look at them from the front to see if they wobble.

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You obviously have a suspention problem that needs to be found. If it's a 4wd, the u-bolts to the front end can get loosened and cause the front to shake. the bushings that set the front end in alignment can also be wearing and not be holding the way they should. I'd take it either to a good suspention shop or the dealer and let them look at it.

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