...all oem 50cc kymco scooters have a washer there streido...
...kwfi, i'm sorry...but it just isnt possible that removing that washer increased your performance...
...to change the variators drive ratio, you must change something that affects how close the two drive face halves can come together...removing the washer from th OUTSIDE of the drive face does nothing to change that.....
...love you bro, but itsa true story....