I think the trick is to use less vinyl/leather, heat it up then stretch it and you remove the necessity for the folds.
Dolemite, Thanks for your helpful comments. (KYMCO/Taiwan - see how much discussion centers around your LIKE seat!?)
Me, I think the 'trick' to doing these scooter/motorcycle seat recoverings is to do a whole mess of them !
Using a purpose made clamp to pull & stretch the material, having a powerful electric stapler, maybe a heat gun. And I think to totally remove the wrinkles on our seat - the front of which is like trying to wrap a basketball without a wrinkle! - the cover must be made in sections and stitched, like donandrews' seat....or you must use the flimsy/stretchy vinyl that Kymco used. Truly, as I sat there with sore fingers, recovering my seat for a second time - I thought of those folks at KYMCO whose job it is to do this all day long for a buck 85. Their work impressed the heck out of me!
It IS easier with the thin vinyl Kymco used - but you still need a lot of experience when working the front and rear areas of the seat.
I, too, have heard it said that a cover should have no stitched seams due to water finding its way in.....but over the years I have seen a whole slew of very handsome seats on very pricey scooters and bikes with stitched seat coverings. Perhaps a waterproof film is applied beneath the seams? They must be doing something right.
I wanted a sewn cover and a rebuilt seat - but the 2 local shops I was dealing with lost patience with me. Or me with them. I wanted to test ride any change they made to the padding before they covered it - to see if it suited my butt. I wanted that plastic intrusion in the middle of the pan to completely disappear....and I wanted NOTHING short of that!
They said, give me your little "scooter" seat - we'll give it a nice recovering. I'd already heard of one fellow who took his LIKE to a shop - and they'd messed his seat up.
When I found a donor seat on eBay from a LIKE - I said - shoot, I'm gonna take a shot at this myself. Watched a couple of videos on reshaping and recovering motorcycle seats (example:
http://diymotorcycleseat.com/tools.htm )....used their sources to buy good purpose made seating foam, spray glue, and (2) sheets of vinyl - got the tools and stainless staples. Figured out pretty quickly that there was no good way to go under the stock seat foam - so had to go over it with my foam. I bungeed the old cover on every time I shaped & added more foam - took it for rides - kept adding and shaping till I was happy. Then came the task of recovering. !#%! If it hadn't been so blessedly comfy - I probably would have quit any number of times!~ You need at least 3 hands - maybe 5.
Stig