BEARINGS STEERING STEM

[wheels]

Had mine replaced a few weeks ago.
I removed and re-installed the plastic stuff.
I had it done by a mobile m/c repair service man.
It took him about 3 1/2 hours.   He had trouble with one bolt
that was frozen, finally got it out and replaced it with a new one.
Oh, the top bearing was missing one ball, service guy said he
has seen this before on other makes as well.

[de dee]

What do you think about drilling and tapping a hole in the neck, screwing in a grease fitting and just filling that sucker up? Sounds like a lot less trouble.

  You would have to fill it to the top for the top bearing,  that's a lot of grease, and you would have to improve the seal on the bottom to keep it from shaking out,.  so taking it apart sounds easyer,.

[kneeslider]

Tapping and filling up the steering stem cavity with grease, won't that grease leak out over time? and that would like down the forks etc.

[de dee]

Tapping and filling up the steering stem cavity with grease, won't that grease leak out over time? and that would like down the forks etc.

 my thoughts too,.   de dee

[DiscoPotato]

I found the culprit to the wandering/steering instability issue. The problem happened to be with the stock maxxis tires I had on the scooter...not sure how tires can make a scooter handle so poor, especially with so much tread left! I replaced them with Metzeler Feelfree tires and it handles like a dream now! I cannot believe how well the scooter rides, incredible!

[Tromper]

Little tough to say without the tires in hand, but you can break a belt in a tire, & have it fail without any major visible signs.
I've had this happen on bikes and cars.   The symptom is pretty much what you describe. 
Regardless.  Glad you got the problem before it got you.

I found the culprit to the wandering/steering instability issue. The problem happened to be with the stock maxxis tires I had on the scooter...not sure how tires can make a scooter handle so poor, especially with so much tread left! I replaced them with Metzeler Feelfree tires and it handles like a dream now! I cannot believe how well the scooter rides, incredible!