Front wheel shimmy

[MotoRandy123]

 Ya a big windshield could do it. Ever tried holding on to one end of a board and pushing
it through the water? It shimmy's back and forth trying to throw the water to this side
or that. The air acts like water against that big board of a windshield...

 Almost anything you do can change it air pressure in the tires, fork oil, rear shock preload,
weight on the bars, tilting the windshield more, etc... So try a few things and see if it helps! 

[08087]

Thanks to all, I was just worried that even though the front fork feels solid I might lose it while driving down the road one night at 50 MPH, not as pleasent thought.

[wordslinger]

+1 on the sheild...


...previoudly unmentioned factor...

[Peters]

Mine started doing that at one point. And, I'm not like some people. Nothing wrong with doing that as long as you're doing it in a safe area and you're ready to grab the bars in an emergency. I think it is good to do every once in a while to feel how the bike is traking. Anyway, I figured out it was caused because the front wheel nut was loose. I don't understand either because it's supposed to be a locking nut but I could turn it with my fingers  . Come on Kymco! Anyway tightened it a little and problem immediately went away. Don't want to tighten it too much or your front wheel won't spin free. Another thing it could be is your front tire. My dad has a big Yamaha cruiser (1400cc) and it was doing it too. He put a new front tire on and it stopped. I have heard it could be a loose steering column bearing too. Another thing is sport bikes can get this without removing hands from the bars and they call it "head shake". It's caused when the power of the bike makes the front end very light to the point where it's barely touching the ground. It's a big issue in motorcycle racing and has caused many crashes. Do a youtube search for "head shake". Anyway, I don't think this is an issue with scooters  . Zombie's ZX maybe  . The point is a number of things can cause it.