Old Car and Bike rambling

While we were living in limbo over the summer, I bought a used scooter for my daughter to get herself to work.  The 2008 Roketa MC-17-50(SICILY-50) was slow. Dangerously slow. Going down a level road on full throttle, the speed topped out at 30mph unless I was going uphill (20mph) or downhill (40mph). At 2.9hp I wasn't sure if I was maximizing the performance. I made a mental note to do something about the performance when I had a place to work on my stuff.  Scooter internals were foreign to me.  They have a CVT transmission which I knew nothing about, however I quickly learned that the "Variator" is a neat little device driven by centrifugal force which works in conjunction with the centrifugal clutch to vary the gearing automatically as the rider goes down the road. Like having someone change gears on my bicycle for me, the variator changes the front gears and the clutch changes the rear gears. Online research pointed to several easy upgrades such as: rem