The Kymcos are really snug fitting on the "tupperware" plastic body panels! There will be several snap-in locations along each seam. The screws are insurance the pieces stay put. It is not a factor now but popping these panels apart should be done above 70 F or the tabs may break. Start with your fingers and either squeeze or probe along the seam(s) to find where the tabs may be and guess what has to be squeezed in and what has to move out. A flat blade sometimes helps in prying the tabs but you have to be careful, patient and use special words. Once you get one loose the rest will make sense. There are others on here that have more experience on the exact covers you are working. Give them a little while and they may add to this.
Karl