New air filter cures excessive vibrations.

I checked my odometer a week ago and found that I had clocked 10,000 km since acquiring my scooter. I had checked the air filter back then, and figured it was time for another boo at it. It was not in the best shape.
I ordered the part from the local Honda dealer ( $ 37.50 , all in). I figured the bike deserved it. It has changed the ride specially start off. There is a definite smoothness to the take off and there is much less vibration in the tupperware up front. I will have to remember that when I see the rattles get pronounced.

And then, I did a search on re-use of air filter and found some posting for replacing the paper guts with unifoam in the frame of the old air filter. Others here have had great success doing it. I was going to save the old air filter and work on it, but I did a pretty good job discarding it; can't find it anywhere.

Another lesson learned: do your search before you tackle even the most routine maintenance on your bike: there might be a more efficient and less costly ( as opposed to cheaper) way to keep your bike in top shape.

Thanks to all on this forum for sharing their wisdom.

I ripped out the guts out of my air filter,and repack it with a piece of foam that I cut out of a discarded egg shape 1 1/2 " mattress ,that I dipped in oil ( old school Mc Giver thing y ) It does a better job picking up dust,and I replace at every oil change at Honda 's 12 k kl oil change .

I've done the Uni-foam mod on my Majesty, Helix and NHX110 Elite with good results. Probably will do it on my Swing when the time comes.