Had the ACE a year now....have put a little over 3000 miles on it.
Gas smell is gone (never found a reason). Throttle response is much better,
rarely bogs down anymore, and if it does a simple off/on the throttle fixes it.
Everything I've looked at: plugs, filters, hoses...etc look good.
Maybe it wasn't being ridden enough by the previous owner.
I now know that part of my issues were due to inexperience on
a motor bigger than 500cc.
I've learned how to respect the power but not be so timid with it.
It does like to be revved up.
Mileage is +/- 37mpg depending on what I'm doing.
Had thought about shaving the seat or lowering the front,
but a friend suggested just riding it more (good advice).
That, and a better pair of boots (just new construction boots) solved that.
Bottom line is after 1 year / 3k miles I'm happy I got it.
Now if only winter will cooperate and give me some good riding days....