this is cool because i was gonna start basically the same thread as i am also working on recommissioning a set of Lesters. Interestingly I bought a set of 750 Lesters back in january then about a month ago i found a second front wheel mis-listed on the local classifieds so i picked it up too. So in total i have 1 rear 750 specific one and 2 fronts.
here is the interesting thing I found when i got the old #$%*ty tires off them....Now don't mind the naked-ness of my lesters they are awaiting paint. Both wheels are marked the same saying Lester T 19 X 2.15 TL 001. The TL suggesting they are both Tubeless fitment but looking at the bead seats they are different? The one on the left has what i believe what is refereed to as a "safety bead" with the ridge where the inner bead will sit while the other has a more typical smooth bead seen on a factory type tube rim. Doing a little research also suggests that the wheel on the right may not be the proper bead type to safely run tubeless. The other interesting thing is the front rear set was mixed types, The rear has the safety bead ridge and the front is the smooth type. The other odd front is the front with the safety bead. For me the other odd front was in better condition too so im gonna switch the fronts so both the front and rear are safety bead type


Oh the other problem I came across was if you wanna run the Lesters Tubeless what valve stems will work, Standard Car / Bike stems are too large. Harley Davidson style are also too large. I ended up going to 3 different shops which scratched there heads and or said it was an old dead standard of a stem. So i went to go visit an older shop where the guy behind the counter is a yoda of all things old motorcycle and he was even a little stumped. He went in the back and grabbed a bin of valve stems and said "here look through this there should be something in here" Sure enough a little rooting through and I turned up these Yamaha Stems that to me look like they will fit the bill quite nicely. they are a little smaller in diameter than the rim hole but I think they will work just fine
