I imagine this one will work.
http://www.motionpro.com/motorcycle/tools/flywheel_puller_-_27mm_x_1.0_l.h.
http://www.motionpro.com/motorcycle/tools/flywheel_puller_-_27mm_x_1.0_l.h.
Yamaha Most single cylinder off-road, enduro, MX, YZ & Quads with
external flywheels 1968 & later, BW80, RIVA50, PW50, RZ350, TT500, XT500, YFM80/100/200/225, YFS200, YFZ350, YSR50, YT125/175 & YZ400F, YZ450F