ATC 90 for fullsized Honda. YTM 125 for Fullsized Yami. I can go all day on one tank of gas on my 90, and the fuel tank is not the stock one and its a bit bigger than stock.
1983 ATC 185s 200 jug bored .20 9.5:1 Naumura piston. Fast as ass when its not stretching the drive chain or stripping hubs.
1986 ATC 250ES. *Total garbage trying to sell it*
1983 YTM 200E. Runs good, forks are super bent but aside from that its mint.
1984 YTM 200L. Barn find, everything is mint except the bottom end is bad... *waiting on a new engine*